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rust / rust-lang / llvm-project / e8a2ffcf322f45b8dce82c65ab27a3e2430a6b51 / . / llvm / test / CodeGen / AMDGPU / GlobalISel / divergence-structurizer.mir
blob: 39ebf66411cc6574faef31b37faed665ff53eeeb [file] [log] [blame]
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4
# RUN: llc -global-isel -mtriple=amdgcn-mesa-amdpal -mcpu=gfx1010 -run-pass=amdgpu-global-isel-divergence-lowering -verify-machineinstrs %s -o - | FileCheck -check-prefix=GFX10 %s
---
name: divergent_i1_phi_if_then
legalized: true
tracksRegLiveness: true
body: |
; GFX10-LABEL: name: divergent_i1_phi_if_then
; GFX10: bb.0:
; GFX10-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; GFX10-NEXT: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX10-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX10-NEXT: [[MV:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
; GFX10-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
; GFX10-NEXT: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
; GFX10-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 6
; GFX10-NEXT: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(uge), [[COPY2]](s32), [[C]]
; GFX10-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP1:%[0-9]+]]:sreg_32_xm0_xexec(s1) = G_ICMP intpred(eq), [[COPY3]](s32), [[C1]]
; GFX10-NEXT: [[COPY4:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP]](s1)
; GFX10-NEXT: [[COPY5:%[0-9]+]]:sreg_32(s1) = COPY [[COPY4]](s1)
; GFX10-NEXT: [[SI_IF:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[ICMP1]](s1), %bb.2, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.1
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.1:
; GFX10-NEXT: successors: %bb.2(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; GFX10-NEXT: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(ult), [[COPY2]](s32), [[C2]]
; GFX10-NEXT: [[COPY6:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP2]](s1)
; GFX10-NEXT: [[S_ANDN2_B32_:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY5]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY6]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_]](s1), [[S_AND_B32_]](s1), implicit-def $scc
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.2:
; GFX10-NEXT: [[PHI:%[0-9]+]]:sreg_32(s1) = PHI [[COPY4]](s1), %bb.0, [[S_OR_B32_]](s1), %bb.1
; GFX10-NEXT: [[COPY7:%[0-9]+]]:sreg_32(s1) = COPY [[PHI]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[SI_IF]](s32)
; GFX10-NEXT: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; GFX10-NEXT: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[COPY7]](s1), [[C4]], [[C3]]
; GFX10-NEXT: G_STORE [[SELECT]](s32), [[MV]](p1) :: (store (s32), addrspace 1)
; GFX10-NEXT: S_ENDPGM 0
bb.0:
successors: %bb.1(0x40000000), %bb.2(0x40000000)
liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(p1) = G_MERGE_VALUES %0(s32), %1(s32)
%3:_(s32) = COPY $vgpr2
%4:_(s32) = COPY $vgpr3
%5:_(s32) = G_CONSTANT i32 6
%6:_(s1) = G_ICMP intpred(uge), %3(s32), %5
%7:_(s32) = G_CONSTANT i32 0
%8:sreg_32_xm0_xexec(s1) = G_ICMP intpred(eq), %4(s32), %7
%9:sreg_32_xm0_xexec(s32) = SI_IF %8(s1), %bb.2, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.1
bb.1:
successors: %bb.2(0x80000000)
%10:_(s32) = G_CONSTANT i32 1
%11:_(s1) = G_ICMP intpred(ult), %3(s32), %10
bb.2:
%12:_(s1) = G_PHI %6(s1), %bb.0, %11(s1), %bb.1
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %9(s32)
%13:_(s32) = G_CONSTANT i32 2
%14:_(s32) = G_CONSTANT i32 1
%15:_(s32) = G_SELECT %12(s1), %14, %13
G_STORE %15(s32), %2(p1) :: (store (s32), addrspace 1)
S_ENDPGM 0
...
---
name: divergent_i1_phi_if_else
legalized: true
tracksRegLiveness: true
body: |
; GFX10-LABEL: name: divergent_i1_phi_if_else
; GFX10: bb.0:
; GFX10-NEXT: successors: %bb.3(0x40000000), %bb.1(0x40000000)
; GFX10-NEXT: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX10-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX10-NEXT: [[MV:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
; GFX10-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
; GFX10-NEXT: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
; GFX10-NEXT: [[DEF:%[0-9]+]]:_(s1) = G_IMPLICIT_DEF
; GFX10-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP:%[0-9]+]]:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), [[COPY3]](s32), [[C]]
; GFX10-NEXT: [[COPY4:%[0-9]+]]:sreg_32(s1) = COPY [[DEF]](s1)
; GFX10-NEXT: [[COPY5:%[0-9]+]]:sreg_32(s1) = COPY [[COPY4]](s1)
; GFX10-NEXT: [[SI_IF:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[ICMP]](s1), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.3
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.1:
; GFX10-NEXT: successors: %bb.2(0x40000000), %bb.4(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI:%[0-9]+]]:sreg_32(s1) = PHI [[COPY4]](s1), %bb.0, %20(s1), %bb.3
; GFX10-NEXT: [[COPY6:%[0-9]+]]:sreg_32(s1) = COPY [[PHI]](s1)
; GFX10-NEXT: [[COPY7:%[0-9]+]]:sreg_32(s1) = COPY [[COPY6]](s1)
; GFX10-NEXT: [[COPY8:%[0-9]+]]:sreg_32(s1) = COPY [[COPY7]](s1)
; GFX10-NEXT: [[SI_ELSE:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_ELSE [[SI_IF]](s32), %bb.4, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.2
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.2:
; GFX10-NEXT: successors: %bb.4(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; GFX10-NEXT: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(uge), [[COPY2]](s32), [[C1]]
; GFX10-NEXT: [[COPY9:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP1]](s1)
; GFX10-NEXT: [[S_ANDN2_B32_:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY8]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY9]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_]](s1), [[S_AND_B32_]](s1), implicit-def $scc
; GFX10-NEXT: G_BR %bb.4
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.3:
; GFX10-NEXT: successors: %bb.1(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(ult), [[COPY2]](s32), [[C2]]
; GFX10-NEXT: [[COPY10:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP2]](s1)
; GFX10-NEXT: [[S_ANDN2_B32_1:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY5]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_1:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY10]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_1:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_1]](s1), [[S_AND_B32_1]](s1), implicit-def $scc
; GFX10-NEXT: G_BR %bb.1
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.4:
; GFX10-NEXT: [[PHI1:%[0-9]+]]:sreg_32(s1) = PHI [[COPY7]](s1), %bb.1, [[S_OR_B32_]](s1), %bb.2
; GFX10-NEXT: [[COPY11:%[0-9]+]]:sreg_32(s1) = COPY [[PHI1]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[SI_ELSE]](s32)
; GFX10-NEXT: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; GFX10-NEXT: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[COPY11]](s1), [[C3]], [[C4]]
; GFX10-NEXT: G_STORE [[SELECT]](s32), [[MV]](p1) :: (store (s32), addrspace 1)
; GFX10-NEXT: S_ENDPGM 0
bb.0:
successors: %bb.3(0x40000000), %bb.1(0x40000000)
liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(p1) = G_MERGE_VALUES %0(s32), %1(s32)
%3:_(s32) = COPY $vgpr2
%4:_(s32) = COPY $vgpr3
%5:_(s1) = G_IMPLICIT_DEF
%6:_(s32) = G_CONSTANT i32 0
%7:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), %4(s32), %6
%8:sreg_32_xm0_xexec(s32) = SI_IF %7(s1), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.3
bb.1:
successors: %bb.2(0x40000000), %bb.4(0x40000000)
%9:_(s1) = G_PHI %10(s1), %bb.3, %5(s1), %bb.0
%11:sreg_32_xm0_xexec(s32) = SI_ELSE %8(s32), %bb.4, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.2
bb.2:
successors: %bb.4(0x80000000)
%12:_(s32) = G_CONSTANT i32 1
%13:_(s1) = G_ICMP intpred(uge), %3(s32), %12
G_BR %bb.4
bb.3:
successors: %bb.1(0x80000000)
%14:_(s32) = G_CONSTANT i32 2
%10:_(s1) = G_ICMP intpred(ult), %3(s32), %14
G_BR %bb.1
bb.4:
%15:_(s1) = G_PHI %9(s1), %bb.1, %13(s1), %bb.2
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %11(s32)
%16:_(s32) = G_CONSTANT i32 1
%17:_(s32) = G_CONSTANT i32 2
%18:_(s32) = G_SELECT %15(s1), %16, %17
G_STORE %18(s32), %2(p1) :: (store (s32), addrspace 1)
S_ENDPGM 0
...
---
name: loop_with_1break
legalized: true
tracksRegLiveness: true
body: |
; GFX10-LABEL: name: loop_with_1break
; GFX10: bb.0:
; GFX10-NEXT: successors: %bb.1(0x80000000)
; GFX10-NEXT: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX10-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX10-NEXT: [[MV:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
; GFX10-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
; GFX10-NEXT: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
; GFX10-NEXT: [[MV1:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY2]](s32), [[COPY3]](s32)
; GFX10-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; GFX10-NEXT: [[DEF1:%[0-9]+]]:sreg_32(s1) = IMPLICIT_DEF
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.1:
; GFX10-NEXT: successors: %bb.2(0x40000000), %bb.3(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI:%[0-9]+]]:sreg_32(s1) = PHI [[DEF1]](s1), %bb.0, %35(s1), %bb.3
; GFX10-NEXT: [[PHI1:%[0-9]+]]:_(s32) = G_PHI %9(s32), %bb.3, [[C]](s32), %bb.0
; GFX10-NEXT: [[PHI2:%[0-9]+]]:_(s32) = G_PHI [[C]](s32), %bb.0, %11(s32), %bb.3
; GFX10-NEXT: [[COPY4:%[0-9]+]]:sreg_32(s1) = COPY [[PHI]](s1)
; GFX10-NEXT: [[C1:%[0-9]+]]:_(s1) = G_CONSTANT i1 true
; GFX10-NEXT: [[COPY5:%[0-9]+]]:sreg_32(s1) = COPY [[C1]](s1)
; GFX10-NEXT: [[SEXT:%[0-9]+]]:_(s64) = G_SEXT [[PHI2]](s32)
; GFX10-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C2]](s32)
; GFX10-NEXT: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV1]], [[SHL]](s64)
; GFX10-NEXT: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP:%[0-9]+]]:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), [[LOAD]](s32), [[C3]]
; GFX10-NEXT: [[S_ANDN2_B32_:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY4]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY5]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_]](s1), [[S_AND_B32_]](s1), implicit-def $scc
; GFX10-NEXT: [[COPY6:%[0-9]+]]:sreg_32(s1) = COPY [[S_OR_B32_]](s1)
; GFX10-NEXT: [[SI_IF:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[ICMP]](s1), %bb.3, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.2
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.2:
; GFX10-NEXT: successors: %bb.3(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL1:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C4]](s32)
; GFX10-NEXT: [[PTR_ADD1:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV]], [[SHL1]](s64)
; GFX10-NEXT: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; GFX10-NEXT: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[LOAD1]], [[C5]]
; GFX10-NEXT: G_STORE [[ADD]](s32), [[PTR_ADD1]](p1) :: (store (s32), addrspace 1)
; GFX10-NEXT: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[PHI2]], [[C5]]
; GFX10-NEXT: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 100
; GFX10-NEXT: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ult), [[PHI2]](s32), [[C6]]
; GFX10-NEXT: [[COPY7:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP1]](s1)
; GFX10-NEXT: [[S_ANDN2_B32_1:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY6]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_1:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY7]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_1:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_1]](s1), [[S_AND_B32_1]](s1), implicit-def $scc
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.3:
; GFX10-NEXT: successors: %bb.4(0x04000000), %bb.1(0x7c000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI3:%[0-9]+]]:sreg_32(s1) = PHI [[S_OR_B32_]](s1), %bb.1, [[S_OR_B32_1]](s1), %bb.2
; GFX10-NEXT: [[PHI4:%[0-9]+]]:_(s32) = G_PHI [[ADD1]](s32), %bb.2, [[DEF]](s32), %bb.1
; GFX10-NEXT: [[COPY8:%[0-9]+]]:sreg_32(s1) = COPY [[PHI3]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[SI_IF]](s32)
; GFX10-NEXT: [[INT:%[0-9]+]]:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), [[COPY8]](s1), [[PHI1]](s32)
; GFX10-NEXT: SI_LOOP [[INT]](s32), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.4
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.4:
; GFX10-NEXT: [[PHI5:%[0-9]+]]:_(s32) = G_PHI [[INT]](s32), %bb.3
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[PHI5]](s32)
; GFX10-NEXT: S_ENDPGM 0
bb.0:
successors: %bb.1(0x80000000)
liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(p1) = G_MERGE_VALUES %0(s32), %1(s32)
%3:_(s32) = COPY $vgpr2
%4:_(s32) = COPY $vgpr3
%5:_(p1) = G_MERGE_VALUES %3(s32), %4(s32)
%6:_(s32) = G_CONSTANT i32 0
%7:_(s32) = G_IMPLICIT_DEF
bb.1:
successors: %bb.2(0x40000000), %bb.3(0x40000000)
%8:_(s32) = G_PHI %9(s32), %bb.3, %6(s32), %bb.0
%10:_(s32) = G_PHI %6(s32), %bb.0, %11(s32), %bb.3
%12:_(s1) = G_CONSTANT i1 true
%13:_(s64) = G_SEXT %10(s32)
%14:_(s32) = G_CONSTANT i32 2
%15:_(s64) = G_SHL %13, %14(s32)
%16:_(p1) = G_PTR_ADD %5, %15(s64)
%17:_(s32) = G_LOAD %16(p1) :: (load (s32), addrspace 1)
%18:_(s32) = G_CONSTANT i32 0
%19:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), %17(s32), %18
%20:sreg_32_xm0_xexec(s32) = SI_IF %19(s1), %bb.3, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.2
bb.2:
successors: %bb.3(0x80000000)
%21:_(s32) = G_CONSTANT i32 2
%22:_(s64) = G_SHL %13, %21(s32)
%23:_(p1) = G_PTR_ADD %2, %22(s64)
%24:_(s32) = G_LOAD %23(p1) :: (load (s32), addrspace 1)
%25:_(s32) = G_CONSTANT i32 1
%26:_(s32) = G_ADD %24, %25
G_STORE %26(s32), %23(p1) :: (store (s32), addrspace 1)
%27:_(s32) = G_ADD %10, %25
%28:_(s32) = G_CONSTANT i32 100
%29:_(s1) = G_ICMP intpred(ult), %10(s32), %28
bb.3:
successors: %bb.4(0x04000000), %bb.1(0x7c000000)
%11:_(s32) = G_PHI %27(s32), %bb.2, %7(s32), %bb.1
%30:_(s1) = G_PHI %29(s1), %bb.2, %12(s1), %bb.1
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %20(s32)
%9:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), %30(s1), %8(s32)
SI_LOOP %9(s32), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.4
bb.4:
%31:_(s32) = G_PHI %9(s32), %bb.3
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %31(s32)
S_ENDPGM 0
...
---
name: loop_with_2breaks
legalized: true
tracksRegLiveness: true
body: |
; GFX10-LABEL: name: loop_with_2breaks
; GFX10: bb.0:
; GFX10-NEXT: successors: %bb.1(0x80000000)
; GFX10-NEXT: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX10-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX10-NEXT: [[MV:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
; GFX10-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
; GFX10-NEXT: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
; GFX10-NEXT: [[MV1:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY2]](s32), [[COPY3]](s32)
; GFX10-NEXT: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
; GFX10-NEXT: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
; GFX10-NEXT: [[MV2:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY4]](s32), [[COPY5]](s32)
; GFX10-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; GFX10-NEXT: [[DEF1:%[0-9]+]]:sreg_32(s1) = IMPLICIT_DEF
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.1:
; GFX10-NEXT: successors: %bb.2(0x40000000), %bb.3(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI:%[0-9]+]]:sreg_32(s1) = PHI [[DEF1]](s1), %bb.0, %48(s1), %bb.3
; GFX10-NEXT: [[PHI1:%[0-9]+]]:_(s32) = G_PHI %12(s32), %bb.3, [[C]](s32), %bb.0
; GFX10-NEXT: [[PHI2:%[0-9]+]]:_(s32) = G_PHI [[C]](s32), %bb.0, %14(s32), %bb.3
; GFX10-NEXT: [[COPY6:%[0-9]+]]:sreg_32(s1) = COPY [[PHI]](s1)
; GFX10-NEXT: [[C1:%[0-9]+]]:_(s1) = G_CONSTANT i1 true
; GFX10-NEXT: [[COPY7:%[0-9]+]]:sreg_32(s1) = COPY [[C1]](s1)
; GFX10-NEXT: [[SEXT:%[0-9]+]]:_(s64) = G_SEXT [[PHI2]](s32)
; GFX10-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C2]](s32)
; GFX10-NEXT: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV1]], [[SHL]](s64)
; GFX10-NEXT: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP:%[0-9]+]]:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), [[LOAD]](s32), [[C3]]
; GFX10-NEXT: [[S_ANDN2_B32_:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY6]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY7]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_]](s1), [[S_AND_B32_]](s1), implicit-def $scc
; GFX10-NEXT: [[COPY8:%[0-9]+]]:sreg_32(s1) = COPY [[S_OR_B32_]](s1)
; GFX10-NEXT: [[SI_IF:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[ICMP]](s1), %bb.3, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.2
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.2:
; GFX10-NEXT: successors: %bb.4(0x40000000), %bb.5(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C4:%[0-9]+]]:_(s1) = G_CONSTANT i1 true
; GFX10-NEXT: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL1:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C5]](s32)
; GFX10-NEXT: [[PTR_ADD1:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV2]], [[SHL1]](s64)
; GFX10-NEXT: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP1:%[0-9]+]]:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), [[LOAD1]](s32), [[C6]]
; GFX10-NEXT: [[COPY9:%[0-9]+]]:sreg_32(s1) = COPY [[C4]](s1)
; GFX10-NEXT: [[COPY10:%[0-9]+]]:sreg_32(s1) = COPY [[COPY9]](s1)
; GFX10-NEXT: [[SI_IF1:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[ICMP1]](s1), %bb.5, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.4
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.3:
; GFX10-NEXT: successors: %bb.6(0x04000000), %bb.1(0x7c000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI3:%[0-9]+]]:sreg_32(s1) = PHI [[S_OR_B32_]](s1), %bb.1, %47(s1), %bb.5
; GFX10-NEXT: [[PHI4:%[0-9]+]]:_(s32) = G_PHI %32(s32), %bb.5, [[DEF]](s32), %bb.1
; GFX10-NEXT: [[COPY11:%[0-9]+]]:sreg_32(s1) = COPY [[PHI3]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[SI_IF]](s32)
; GFX10-NEXT: [[INT:%[0-9]+]]:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), [[COPY11]](s1), [[PHI1]](s32)
; GFX10-NEXT: SI_LOOP [[INT]](s32), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.6
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.4:
; GFX10-NEXT: successors: %bb.5(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL2:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C7]](s32)
; GFX10-NEXT: [[PTR_ADD2:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV]], [[SHL2]](s64)
; GFX10-NEXT: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; GFX10-NEXT: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[LOAD2]], [[C8]]
; GFX10-NEXT: G_STORE [[ADD]](s32), [[PTR_ADD2]](p1) :: (store (s32), addrspace 1)
; GFX10-NEXT: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[PHI2]], [[C8]]
; GFX10-NEXT: [[C9:%[0-9]+]]:_(s32) = G_CONSTANT i32 100
; GFX10-NEXT: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(ult), [[PHI2]](s32), [[C9]]
; GFX10-NEXT: [[COPY12:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP2]](s1)
; GFX10-NEXT: [[S_ANDN2_B32_1:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY10]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_1:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY12]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_1:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_1]](s1), [[S_AND_B32_1]](s1), implicit-def $scc
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.5:
; GFX10-NEXT: successors: %bb.3(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI5:%[0-9]+]]:sreg_32(s1) = PHI [[COPY9]](s1), %bb.2, [[S_OR_B32_1]](s1), %bb.4
; GFX10-NEXT: [[PHI6:%[0-9]+]]:_(s32) = G_PHI [[ADD1]](s32), %bb.4, [[DEF]](s32), %bb.2
; GFX10-NEXT: [[COPY13:%[0-9]+]]:sreg_32(s1) = COPY [[PHI5]](s1)
; GFX10-NEXT: [[COPY14:%[0-9]+]]:sreg_32(s1) = COPY [[COPY13]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[SI_IF1]](s32)
; GFX10-NEXT: [[S_ANDN2_B32_2:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY8]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_2:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY14]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_2:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_2]](s1), [[S_AND_B32_2]](s1), implicit-def $scc
; GFX10-NEXT: G_BR %bb.3
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.6:
; GFX10-NEXT: [[PHI7:%[0-9]+]]:_(s32) = G_PHI [[INT]](s32), %bb.3
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[PHI7]](s32)
; GFX10-NEXT: S_ENDPGM 0
bb.0:
successors: %bb.1(0x80000000)
liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(p1) = G_MERGE_VALUES %0(s32), %1(s32)
%3:_(s32) = COPY $vgpr2
%4:_(s32) = COPY $vgpr3
%5:_(p1) = G_MERGE_VALUES %3(s32), %4(s32)
%6:_(s32) = COPY $vgpr4
%7:_(s32) = COPY $vgpr5
%8:_(p1) = G_MERGE_VALUES %6(s32), %7(s32)
%9:_(s32) = G_CONSTANT i32 0
%10:_(s32) = G_IMPLICIT_DEF
bb.1:
successors: %bb.2(0x40000000), %bb.3(0x40000000)
%11:_(s32) = G_PHI %12(s32), %bb.3, %9(s32), %bb.0
%13:_(s32) = G_PHI %9(s32), %bb.0, %14(s32), %bb.3
%15:_(s1) = G_CONSTANT i1 true
%16:_(s64) = G_SEXT %13(s32)
%17:_(s32) = G_CONSTANT i32 2
%18:_(s64) = G_SHL %16, %17(s32)
%19:_(p1) = G_PTR_ADD %5, %18(s64)
%20:_(s32) = G_LOAD %19(p1) :: (load (s32), addrspace 1)
%21:_(s32) = G_CONSTANT i32 0
%22:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), %20(s32), %21
%23:sreg_32_xm0_xexec(s32) = SI_IF %22(s1), %bb.3, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.2
bb.2:
successors: %bb.4(0x40000000), %bb.5(0x40000000)
%24:_(s1) = G_CONSTANT i1 true
%25:_(s32) = G_CONSTANT i32 2
%26:_(s64) = G_SHL %16, %25(s32)
%27:_(p1) = G_PTR_ADD %8, %26(s64)
%28:_(s32) = G_LOAD %27(p1) :: (load (s32), addrspace 1)
%29:_(s32) = G_CONSTANT i32 0
%30:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), %28(s32), %29
%31:sreg_32_xm0_xexec(s32) = SI_IF %30(s1), %bb.5, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.4
bb.3:
successors: %bb.6(0x04000000), %bb.1(0x7c000000)
%14:_(s32) = G_PHI %32(s32), %bb.5, %10(s32), %bb.1
%33:_(s1) = G_PHI %34(s1), %bb.5, %15(s1), %bb.1
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %23(s32)
%12:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), %33(s1), %11(s32)
SI_LOOP %12(s32), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.6
bb.4:
successors: %bb.5(0x80000000)
%35:_(s32) = G_CONSTANT i32 2
%36:_(s64) = G_SHL %16, %35(s32)
%37:_(p1) = G_PTR_ADD %2, %36(s64)
%38:_(s32) = G_LOAD %37(p1) :: (load (s32), addrspace 1)
%39:_(s32) = G_CONSTANT i32 1
%40:_(s32) = G_ADD %38, %39
G_STORE %40(s32), %37(p1) :: (store (s32), addrspace 1)
%41:_(s32) = G_ADD %13, %39
%42:_(s32) = G_CONSTANT i32 100
%43:_(s1) = G_ICMP intpred(ult), %13(s32), %42
bb.5:
successors: %bb.3(0x80000000)
%32:_(s32) = G_PHI %41(s32), %bb.4, %10(s32), %bb.2
%34:_(s1) = G_PHI %43(s1), %bb.4, %24(s1), %bb.2
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %31(s32)
G_BR %bb.3
bb.6:
%44:_(s32) = G_PHI %12(s32), %bb.3
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %44(s32)
S_ENDPGM 0
...
---
name: loop_with_3breaks
legalized: true
tracksRegLiveness: true
body: |
; GFX10-LABEL: name: loop_with_3breaks
; GFX10: bb.0:
; GFX10-NEXT: successors: %bb.1(0x80000000)
; GFX10-NEXT: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX10-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX10-NEXT: [[MV:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
; GFX10-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
; GFX10-NEXT: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
; GFX10-NEXT: [[MV1:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY2]](s32), [[COPY3]](s32)
; GFX10-NEXT: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
; GFX10-NEXT: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
; GFX10-NEXT: [[MV2:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY4]](s32), [[COPY5]](s32)
; GFX10-NEXT: [[COPY6:%[0-9]+]]:_(s32) = COPY $vgpr6
; GFX10-NEXT: [[COPY7:%[0-9]+]]:_(s32) = COPY $vgpr7
; GFX10-NEXT: [[MV3:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY6]](s32), [[COPY7]](s32)
; GFX10-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; GFX10-NEXT: [[DEF1:%[0-9]+]]:sreg_32(s1) = IMPLICIT_DEF
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.1:
; GFX10-NEXT: successors: %bb.2(0x40000000), %bb.3(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI:%[0-9]+]]:sreg_32(s1) = PHI [[DEF1]](s1), %bb.0, %61(s1), %bb.3
; GFX10-NEXT: [[PHI1:%[0-9]+]]:_(s32) = G_PHI %15(s32), %bb.3, [[C]](s32), %bb.0
; GFX10-NEXT: [[PHI2:%[0-9]+]]:_(s32) = G_PHI [[C]](s32), %bb.0, %17(s32), %bb.3
; GFX10-NEXT: [[COPY8:%[0-9]+]]:sreg_32(s1) = COPY [[PHI]](s1)
; GFX10-NEXT: [[C1:%[0-9]+]]:_(s1) = G_CONSTANT i1 true
; GFX10-NEXT: [[COPY9:%[0-9]+]]:sreg_32(s1) = COPY [[C1]](s1)
; GFX10-NEXT: [[SEXT:%[0-9]+]]:_(s64) = G_SEXT [[PHI2]](s32)
; GFX10-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C2]](s32)
; GFX10-NEXT: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV1]], [[SHL]](s64)
; GFX10-NEXT: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP:%[0-9]+]]:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), [[LOAD]](s32), [[C3]]
; GFX10-NEXT: [[S_ANDN2_B32_:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY8]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY9]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_]](s1), [[S_AND_B32_]](s1), implicit-def $scc
; GFX10-NEXT: [[COPY10:%[0-9]+]]:sreg_32(s1) = COPY [[S_OR_B32_]](s1)
; GFX10-NEXT: [[SI_IF:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[ICMP]](s1), %bb.3, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.2
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.2:
; GFX10-NEXT: successors: %bb.4(0x40000000), %bb.5(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C4:%[0-9]+]]:_(s1) = G_CONSTANT i1 true
; GFX10-NEXT: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL1:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C5]](s32)
; GFX10-NEXT: [[PTR_ADD1:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV2]], [[SHL1]](s64)
; GFX10-NEXT: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP1:%[0-9]+]]:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), [[LOAD1]](s32), [[C6]]
; GFX10-NEXT: [[COPY11:%[0-9]+]]:sreg_32(s1) = COPY [[C4]](s1)
; GFX10-NEXT: [[COPY12:%[0-9]+]]:sreg_32(s1) = COPY [[COPY11]](s1)
; GFX10-NEXT: [[SI_IF1:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[ICMP1]](s1), %bb.5, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.4
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.3:
; GFX10-NEXT: successors: %bb.8(0x04000000), %bb.1(0x7c000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI3:%[0-9]+]]:sreg_32(s1) = PHI [[S_OR_B32_]](s1), %bb.1, %60(s1), %bb.5
; GFX10-NEXT: [[PHI4:%[0-9]+]]:_(s32) = G_PHI %35(s32), %bb.5, [[DEF]](s32), %bb.1
; GFX10-NEXT: [[COPY13:%[0-9]+]]:sreg_32(s1) = COPY [[PHI3]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[SI_IF]](s32)
; GFX10-NEXT: [[INT:%[0-9]+]]:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), [[COPY13]](s1), [[PHI1]](s32)
; GFX10-NEXT: SI_LOOP [[INT]](s32), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.8
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.4:
; GFX10-NEXT: successors: %bb.6(0x40000000), %bb.7(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C7:%[0-9]+]]:_(s1) = G_CONSTANT i1 true
; GFX10-NEXT: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL2:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C8]](s32)
; GFX10-NEXT: [[PTR_ADD2:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV3]], [[SHL2]](s64)
; GFX10-NEXT: [[LOAD2:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD2]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C9:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP2:%[0-9]+]]:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), [[LOAD2]](s32), [[C9]]
; GFX10-NEXT: [[COPY14:%[0-9]+]]:sreg_32(s1) = COPY [[C7]](s1)
; GFX10-NEXT: [[COPY15:%[0-9]+]]:sreg_32(s1) = COPY [[COPY14]](s1)
; GFX10-NEXT: [[SI_IF2:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[ICMP2]](s1), %bb.7, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.6
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.5:
; GFX10-NEXT: successors: %bb.3(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI5:%[0-9]+]]:sreg_32(s1) = PHI [[COPY11]](s1), %bb.2, %72(s1), %bb.7
; GFX10-NEXT: [[PHI6:%[0-9]+]]:_(s32) = G_PHI %46(s32), %bb.7, [[DEF]](s32), %bb.2
; GFX10-NEXT: [[COPY16:%[0-9]+]]:sreg_32(s1) = COPY [[PHI5]](s1)
; GFX10-NEXT: [[COPY17:%[0-9]+]]:sreg_32(s1) = COPY [[COPY16]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[SI_IF1]](s32)
; GFX10-NEXT: [[S_ANDN2_B32_1:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY10]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_1:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY17]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_1:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_1]](s1), [[S_AND_B32_1]](s1), implicit-def $scc
; GFX10-NEXT: G_BR %bb.3
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.6:
; GFX10-NEXT: successors: %bb.7(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C10:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL3:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C10]](s32)
; GFX10-NEXT: [[PTR_ADD3:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV]], [[SHL3]](s64)
; GFX10-NEXT: [[LOAD3:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD3]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C11:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; GFX10-NEXT: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[LOAD3]], [[C11]]
; GFX10-NEXT: G_STORE [[ADD]](s32), [[PTR_ADD3]](p1) :: (store (s32), addrspace 1)
; GFX10-NEXT: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[PHI2]], [[C11]]
; GFX10-NEXT: [[C12:%[0-9]+]]:_(s32) = G_CONSTANT i32 100
; GFX10-NEXT: [[ICMP3:%[0-9]+]]:_(s1) = G_ICMP intpred(ult), [[PHI2]](s32), [[C12]]
; GFX10-NEXT: [[COPY18:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP3]](s1)
; GFX10-NEXT: [[S_ANDN2_B32_2:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY15]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_2:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY18]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_2:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_2]](s1), [[S_AND_B32_2]](s1), implicit-def $scc
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.7:
; GFX10-NEXT: successors: %bb.5(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI7:%[0-9]+]]:sreg_32(s1) = PHI [[COPY14]](s1), %bb.4, [[S_OR_B32_2]](s1), %bb.6
; GFX10-NEXT: [[PHI8:%[0-9]+]]:_(s32) = G_PHI [[ADD1]](s32), %bb.6, [[DEF]](s32), %bb.4
; GFX10-NEXT: [[COPY19:%[0-9]+]]:sreg_32(s1) = COPY [[PHI7]](s1)
; GFX10-NEXT: [[COPY20:%[0-9]+]]:sreg_32(s1) = COPY [[COPY19]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[SI_IF2]](s32)
; GFX10-NEXT: [[S_ANDN2_B32_3:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY12]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_3:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY20]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_3:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_3]](s1), [[S_AND_B32_3]](s1), implicit-def $scc
; GFX10-NEXT: G_BR %bb.5
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.8:
; GFX10-NEXT: [[PHI9:%[0-9]+]]:_(s32) = G_PHI [[INT]](s32), %bb.3
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[PHI9]](s32)
; GFX10-NEXT: S_ENDPGM 0
bb.0:
successors: %bb.1(0x80000000)
liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(p1) = G_MERGE_VALUES %0(s32), %1(s32)
%3:_(s32) = COPY $vgpr2
%4:_(s32) = COPY $vgpr3
%5:_(p1) = G_MERGE_VALUES %3(s32), %4(s32)
%6:_(s32) = COPY $vgpr4
%7:_(s32) = COPY $vgpr5
%8:_(p1) = G_MERGE_VALUES %6(s32), %7(s32)
%9:_(s32) = COPY $vgpr6
%10:_(s32) = COPY $vgpr7
%11:_(p1) = G_MERGE_VALUES %9(s32), %10(s32)
%12:_(s32) = G_CONSTANT i32 0
%13:_(s32) = G_IMPLICIT_DEF
bb.1:
successors: %bb.2(0x40000000), %bb.3(0x40000000)
%14:_(s32) = G_PHI %15(s32), %bb.3, %12(s32), %bb.0
%16:_(s32) = G_PHI %12(s32), %bb.0, %17(s32), %bb.3
%18:_(s1) = G_CONSTANT i1 true
%19:_(s64) = G_SEXT %16(s32)
%20:_(s32) = G_CONSTANT i32 2
%21:_(s64) = G_SHL %19, %20(s32)
%22:_(p1) = G_PTR_ADD %5, %21(s64)
%23:_(s32) = G_LOAD %22(p1) :: (load (s32), addrspace 1)
%24:_(s32) = G_CONSTANT i32 0
%25:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), %23(s32), %24
%26:sreg_32_xm0_xexec(s32) = SI_IF %25(s1), %bb.3, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.2
bb.2:
successors: %bb.4(0x40000000), %bb.5(0x40000000)
%27:_(s1) = G_CONSTANT i1 true
%28:_(s32) = G_CONSTANT i32 2
%29:_(s64) = G_SHL %19, %28(s32)
%30:_(p1) = G_PTR_ADD %8, %29(s64)
%31:_(s32) = G_LOAD %30(p1) :: (load (s32), addrspace 1)
%32:_(s32) = G_CONSTANT i32 0
%33:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), %31(s32), %32
%34:sreg_32_xm0_xexec(s32) = SI_IF %33(s1), %bb.5, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.4
bb.3:
successors: %bb.8(0x04000000), %bb.1(0x7c000000)
%17:_(s32) = G_PHI %35(s32), %bb.5, %13(s32), %bb.1
%36:_(s1) = G_PHI %37(s1), %bb.5, %18(s1), %bb.1
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %26(s32)
%15:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), %36(s1), %14(s32)
SI_LOOP %15(s32), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.8
bb.4:
successors: %bb.6(0x40000000), %bb.7(0x40000000)
%38:_(s1) = G_CONSTANT i1 true
%39:_(s32) = G_CONSTANT i32 2
%40:_(s64) = G_SHL %19, %39(s32)
%41:_(p1) = G_PTR_ADD %11, %40(s64)
%42:_(s32) = G_LOAD %41(p1) :: (load (s32), addrspace 1)
%43:_(s32) = G_CONSTANT i32 0
%44:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), %42(s32), %43
%45:sreg_32_xm0_xexec(s32) = SI_IF %44(s1), %bb.7, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.6
bb.5:
successors: %bb.3(0x80000000)
%35:_(s32) = G_PHI %46(s32), %bb.7, %13(s32), %bb.2
%37:_(s1) = G_PHI %47(s1), %bb.7, %27(s1), %bb.2
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %34(s32)
G_BR %bb.3
bb.6:
successors: %bb.7(0x80000000)
%48:_(s32) = G_CONSTANT i32 2
%49:_(s64) = G_SHL %19, %48(s32)
%50:_(p1) = G_PTR_ADD %2, %49(s64)
%51:_(s32) = G_LOAD %50(p1) :: (load (s32), addrspace 1)
%52:_(s32) = G_CONSTANT i32 1
%53:_(s32) = G_ADD %51, %52
G_STORE %53(s32), %50(p1) :: (store (s32), addrspace 1)
%54:_(s32) = G_ADD %16, %52
%55:_(s32) = G_CONSTANT i32 100
%56:_(s1) = G_ICMP intpred(ult), %16(s32), %55
bb.7:
successors: %bb.5(0x80000000)
%46:_(s32) = G_PHI %54(s32), %bb.6, %13(s32), %bb.4
%47:_(s1) = G_PHI %56(s1), %bb.6, %38(s1), %bb.4
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %45(s32)
G_BR %bb.5
bb.8:
%57:_(s32) = G_PHI %15(s32), %bb.3
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %57(s32)
S_ENDPGM 0
...
---
name: loop_with_div_break_with_body
legalized: true
tracksRegLiveness: true
body: |
; GFX10-LABEL: name: loop_with_div_break_with_body
; GFX10: bb.0:
; GFX10-NEXT: successors: %bb.1(0x80000000)
; GFX10-NEXT: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX10-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX10-NEXT: [[MV:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY]](s32), [[COPY1]](s32)
; GFX10-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
; GFX10-NEXT: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
; GFX10-NEXT: [[MV1:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY2]](s32), [[COPY3]](s32)
; GFX10-NEXT: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
; GFX10-NEXT: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
; GFX10-NEXT: [[MV2:%[0-9]+]]:_(p1) = G_MERGE_VALUES [[COPY4]](s32), [[COPY5]](s32)
; GFX10-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[DEF:%[0-9]+]]:_(s32) = G_IMPLICIT_DEF
; GFX10-NEXT: [[DEF1:%[0-9]+]]:sreg_32(s1) = IMPLICIT_DEF
; GFX10-NEXT: [[DEF2:%[0-9]+]]:sreg_32(s1) = IMPLICIT_DEF
; GFX10-NEXT: [[DEF3:%[0-9]+]]:sreg_32_xm0_xexec(s1) = IMPLICIT_DEF
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.1:
; GFX10-NEXT: successors: %bb.3(0x40000000), %bb.5(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI:%[0-9]+]]:sreg_32_xm0_xexec(s1) = PHI [[DEF3]](s1), %bb.0, %67(s1), %bb.5
; GFX10-NEXT: [[PHI1:%[0-9]+]]:sreg_32(s1) = PHI [[DEF2]](s1), %bb.0, %56(s1), %bb.5
; GFX10-NEXT: [[PHI2:%[0-9]+]]:sreg_32(s1) = PHI [[DEF1]](s1), %bb.0, %43(s1), %bb.5
; GFX10-NEXT: [[PHI3:%[0-9]+]]:_(s32) = G_PHI %12(s32), %bb.5, [[C]](s32), %bb.0
; GFX10-NEXT: [[PHI4:%[0-9]+]]:_(s32) = G_PHI [[C]](s32), %bb.0, %14(s32), %bb.5
; GFX10-NEXT: [[COPY6:%[0-9]+]]:sreg_32_xm0_xexec(s1) = COPY [[PHI]](s1)
; GFX10-NEXT: [[COPY7:%[0-9]+]]:sreg_32(s1) = COPY [[PHI1]](s1)
; GFX10-NEXT: [[COPY8:%[0-9]+]]:sreg_32(s1) = COPY [[PHI2]](s1)
; GFX10-NEXT: [[C1:%[0-9]+]]:_(s1) = G_CONSTANT i1 true
; GFX10-NEXT: [[COPY9:%[0-9]+]]:sreg_32(s1) = COPY [[C1]](s1)
; GFX10-NEXT: [[COPY10:%[0-9]+]]:sreg_32(s1) = COPY [[C1]](s1)
; GFX10-NEXT: [[SEXT:%[0-9]+]]:_(s64) = G_SEXT [[PHI4]](s32)
; GFX10-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C2]](s32)
; GFX10-NEXT: [[PTR_ADD:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV1]], [[SHL]](s64)
; GFX10-NEXT: [[LOAD:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP:%[0-9]+]]:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), [[LOAD]](s32), [[C3]]
; GFX10-NEXT: [[S_ANDN2_B32_:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY8]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY10]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_]](s1), [[S_AND_B32_]](s1), implicit-def $scc
; GFX10-NEXT: [[COPY11:%[0-9]+]]:sreg_32(s1) = COPY [[S_OR_B32_]](s1)
; GFX10-NEXT: [[S_ANDN2_B32_1:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY7]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_1:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY9]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_1:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_1]](s1), [[S_AND_B32_1]](s1), implicit-def $scc
; GFX10-NEXT: [[COPY12:%[0-9]+]]:sreg_32(s1) = COPY [[S_OR_B32_1]](s1)
; GFX10-NEXT: [[SI_IF:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[ICMP]](s1), %bb.5, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.3
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.2:
; GFX10-NEXT: successors: %bb.4(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 10
; GFX10-NEXT: G_STORE [[C4]](s32), [[MV2]](p1) :: (store (s32), addrspace 1)
; GFX10-NEXT: G_BR %bb.4
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.3:
; GFX10-NEXT: successors: %bb.5(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C5:%[0-9]+]]:_(s1) = G_CONSTANT i1 false
; GFX10-NEXT: [[COPY13:%[0-9]+]]:sreg_32(s1) = COPY [[C5]](s1)
; GFX10-NEXT: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; GFX10-NEXT: [[SHL1:%[0-9]+]]:_(s64) = G_SHL [[SEXT]], [[C6]](s32)
; GFX10-NEXT: [[PTR_ADD1:%[0-9]+]]:_(p1) = G_PTR_ADD [[MV]], [[SHL1]](s64)
; GFX10-NEXT: [[LOAD1:%[0-9]+]]:_(s32) = G_LOAD [[PTR_ADD1]](p1) :: (load (s32), addrspace 1)
; GFX10-NEXT: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; GFX10-NEXT: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[LOAD1]], [[C7]]
; GFX10-NEXT: G_STORE [[ADD]](s32), [[PTR_ADD1]](p1) :: (store (s32), addrspace 1)
; GFX10-NEXT: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[PHI4]], [[C7]]
; GFX10-NEXT: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 100
; GFX10-NEXT: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ult), [[PHI4]](s32), [[C8]]
; GFX10-NEXT: [[COPY14:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP1]](s1)
; GFX10-NEXT: [[S_ANDN2_B32_2:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY11]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_2:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY13]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_2:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_2]](s1), [[S_AND_B32_2]](s1), implicit-def $scc
; GFX10-NEXT: [[S_ANDN2_B32_3:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY12]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_3:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY14]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_3:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_3]](s1), [[S_AND_B32_3]](s1), implicit-def $scc
; GFX10-NEXT: G_BR %bb.5
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.4:
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %35(s32)
; GFX10-NEXT: S_ENDPGM 0
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.5:
; GFX10-NEXT: successors: %bb.6(0x04000000), %bb.1(0x7c000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI5:%[0-9]+]]:sreg_32(s1) = PHI [[S_OR_B32_1]](s1), %bb.1, [[S_OR_B32_3]](s1), %bb.3
; GFX10-NEXT: [[PHI6:%[0-9]+]]:sreg_32(s1) = PHI [[S_OR_B32_]](s1), %bb.1, [[S_OR_B32_2]](s1), %bb.3
; GFX10-NEXT: [[PHI7:%[0-9]+]]:_(s32) = G_PHI [[ADD1]](s32), %bb.3, [[DEF]](s32), %bb.1
; GFX10-NEXT: [[COPY15:%[0-9]+]]:sreg_32(s1) = COPY [[PHI5]](s1)
; GFX10-NEXT: [[COPY16:%[0-9]+]]:sreg_32(s1) = COPY [[PHI6]](s1)
; GFX10-NEXT: [[COPY17:%[0-9]+]]:sreg_32_xm0_xexec(s1) = COPY [[COPY16]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[SI_IF]](s32)
; GFX10-NEXT: [[INT:%[0-9]+]]:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), [[COPY15]](s1), [[PHI3]](s32)
; GFX10-NEXT: [[S_ANDN2_B32_4:%[0-9]+]]:sreg_32_xm0_xexec(s1) = S_ANDN2_B32 [[COPY6]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_4:%[0-9]+]]:sreg_32_xm0_xexec(s1) = S_AND_B32 $exec_lo, [[COPY17]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_4:%[0-9]+]]:sreg_32_xm0_xexec(s1) = S_OR_B32 [[S_ANDN2_B32_4]](s1), [[S_AND_B32_4]](s1), implicit-def $scc
; GFX10-NEXT: SI_LOOP [[INT]](s32), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.6
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.6:
; GFX10-NEXT: successors: %bb.2(0x40000000), %bb.4(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI8:%[0-9]+]]:_(s32) = G_PHI [[INT]](s32), %bb.5
; GFX10-NEXT: [[COPY18:%[0-9]+]]:sreg_32_xm0_xexec(s1) = COPY [[S_OR_B32_4]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[PHI8]](s32)
; GFX10-NEXT: [[SI_IF1:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[COPY18]](s1), %bb.4, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.2
bb.0:
successors: %bb.1(0x80000000)
liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(p1) = G_MERGE_VALUES %0(s32), %1(s32)
%3:_(s32) = COPY $vgpr2
%4:_(s32) = COPY $vgpr3
%5:_(p1) = G_MERGE_VALUES %3(s32), %4(s32)
%6:_(s32) = COPY $vgpr4
%7:_(s32) = COPY $vgpr5
%8:_(p1) = G_MERGE_VALUES %6(s32), %7(s32)
%9:_(s32) = G_CONSTANT i32 0
%10:_(s32) = G_IMPLICIT_DEF
bb.1:
successors: %bb.3(0x40000000), %bb.5(0x40000000)
%11:_(s32) = G_PHI %12(s32), %bb.5, %9(s32), %bb.0
%13:_(s32) = G_PHI %9(s32), %bb.0, %14(s32), %bb.5
%15:_(s1) = G_CONSTANT i1 true
%16:_(s64) = G_SEXT %13(s32)
%17:_(s32) = G_CONSTANT i32 2
%18:_(s64) = G_SHL %16, %17(s32)
%19:_(p1) = G_PTR_ADD %5, %18(s64)
%20:_(s32) = G_LOAD %19(p1) :: (load (s32), addrspace 1)
%21:_(s32) = G_CONSTANT i32 0
%22:sreg_32_xm0_xexec(s1) = G_ICMP intpred(ne), %20(s32), %21
%23:sreg_32_xm0_xexec(s32) = SI_IF %22(s1), %bb.5, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.3
bb.2:
successors: %bb.4(0x80000000)
%24:_(s32) = G_CONSTANT i32 10
G_STORE %24(s32), %8(p1) :: (store (s32), addrspace 1)
G_BR %bb.4
bb.3:
successors: %bb.5(0x80000000)
%25:_(s1) = G_CONSTANT i1 false
%26:_(s32) = G_CONSTANT i32 2
%27:_(s64) = G_SHL %16, %26(s32)
%28:_(p1) = G_PTR_ADD %2, %27(s64)
%29:_(s32) = G_LOAD %28(p1) :: (load (s32), addrspace 1)
%30:_(s32) = G_CONSTANT i32 1
%31:_(s32) = G_ADD %29, %30
G_STORE %31(s32), %28(p1) :: (store (s32), addrspace 1)
%32:_(s32) = G_ADD %13, %30
%33:_(s32) = G_CONSTANT i32 100
%34:_(s1) = G_ICMP intpred(ult), %13(s32), %33
G_BR %bb.5
bb.4:
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %35(s32)
S_ENDPGM 0
bb.5:
successors: %bb.6(0x04000000), %bb.1(0x7c000000)
%14:_(s32) = G_PHI %32(s32), %bb.3, %10(s32), %bb.1
%36:_(s1) = G_PHI %25(s1), %bb.3, %15(s1), %bb.1
%37:_(s1) = G_PHI %34(s1), %bb.3, %15(s1), %bb.1
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %23(s32)
%12:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), %37(s1), %11(s32)
SI_LOOP %12(s32), %bb.1, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.6
bb.6:
successors: %bb.2(0x40000000), %bb.4(0x40000000)
%38:sreg_32_xm0_xexec(s1) = G_PHI %36(s1), %bb.5
%39:_(s32) = G_PHI %12(s32), %bb.5
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %39(s32)
%35:sreg_32_xm0_xexec(s32) = SI_IF %38(s1), %bb.4, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.2
...
---
name: irreducible_cfg
legalized: true
tracksRegLiveness: true
body: |
; GFX10-LABEL: name: irreducible_cfg
; GFX10: bb.0:
; GFX10-NEXT: successors: %bb.7(0x80000000)
; GFX10-NEXT: liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX10-NEXT: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX10-NEXT: [[COPY2:%[0-9]+]]:_(s32) = COPY $vgpr2
; GFX10-NEXT: [[COPY3:%[0-9]+]]:_(s32) = COPY $vgpr3
; GFX10-NEXT: [[COPY4:%[0-9]+]]:_(s32) = COPY $vgpr4
; GFX10-NEXT: [[COPY5:%[0-9]+]]:_(s32) = COPY $vgpr5
; GFX10-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[DEF:%[0-9]+]]:_(s1) = G_IMPLICIT_DEF
; GFX10-NEXT: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[COPY4]](s32), [[COPY1]]
; GFX10-NEXT: [[DEF1:%[0-9]+]]:sreg_32(s1) = IMPLICIT_DEF
; GFX10-NEXT: [[DEF2:%[0-9]+]]:sreg_32(s1) = IMPLICIT_DEF
; GFX10-NEXT: [[COPY6:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP]](s1)
; GFX10-NEXT: G_BR %bb.7
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.1:
; GFX10-NEXT: successors: %bb.3(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; GFX10-NEXT: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(sle), [[COPY4]](s32), [[COPY]]
; GFX10-NEXT: G_BR %bb.3
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.2:
; GFX10-NEXT: successors: %bb.4(0x40000000), %bb.7(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI:%[0-9]+]]:sreg_32_xm0_xexec(s1) = PHI %53(s1), %bb.6, %57(s1), %bb.7
; GFX10-NEXT: [[PHI1:%[0-9]+]]:sreg_32(s1) = PHI %35(s1), %bb.6, %34(s1), %bb.7
; GFX10-NEXT: [[PHI2:%[0-9]+]]:_(s1) = G_PHI %12(s1), %bb.6, [[DEF]](s1), %bb.7
; GFX10-NEXT: [[COPY7:%[0-9]+]]:sreg_32_xm0_xexec(s1) = COPY [[PHI2]](s1)
; GFX10-NEXT: [[COPY8:%[0-9]+]]:sreg_32_xm0_xexec(s1) = COPY [[PHI]](s1)
; GFX10-NEXT: [[COPY9:%[0-9]+]]:sreg_32(s1) = COPY [[PHI1]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %15(s32)
; GFX10-NEXT: [[INT:%[0-9]+]]:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), [[COPY9]](s1), %17(s32)
; GFX10-NEXT: [[S_ANDN2_B32_:%[0-9]+]]:sreg_32_xm0_xexec(s1) = S_ANDN2_B32 [[COPY8]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_:%[0-9]+]]:sreg_32_xm0_xexec(s1) = S_AND_B32 $exec_lo, [[COPY7]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_:%[0-9]+]]:sreg_32_xm0_xexec(s1) = S_OR_B32 [[S_ANDN2_B32_]](s1), [[S_AND_B32_]](s1), implicit-def $scc
; GFX10-NEXT: [[COPY10:%[0-9]+]]:sreg_32_xm0_xexec(s1) = COPY [[S_OR_B32_]](s1)
; GFX10-NEXT: SI_LOOP [[INT]](s32), %bb.7, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.4
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.3:
; GFX10-NEXT: successors: %bb.6(0x04000000), %bb.3(0x7c000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI3:%[0-9]+]]:_(s32) = G_PHI [[C1]](s32), %bb.1, %19(s32), %bb.3
; GFX10-NEXT: [[INT1:%[0-9]+]]:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), [[ICMP1]](s1), [[PHI3]](s32)
; GFX10-NEXT: SI_LOOP [[INT1]](s32), %bb.3, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.6
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.4:
; GFX10-NEXT: successors: %bb.5(0x04000000), %bb.7(0x7c000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[INT]](s32)
; GFX10-NEXT: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[COPY5]](s32), [[COPY]]
; GFX10-NEXT: [[COPY11:%[0-9]+]]:sreg_32(s1) = COPY [[ICMP2]](s1)
; GFX10-NEXT: [[C2:%[0-9]+]]:_(s1) = G_CONSTANT i1 true
; GFX10-NEXT: [[COPY12:%[0-9]+]]:sreg_32_xm0_xexec(s1) = COPY [[C2]](s1)
; GFX10-NEXT: [[XOR:%[0-9]+]]:_(s1) = G_XOR [[ICMP]], [[C2]]
; GFX10-NEXT: [[OR:%[0-9]+]]:_(s1) = G_OR [[ICMP2]], [[XOR]]
; GFX10-NEXT: [[INT2:%[0-9]+]]:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), [[OR]](s1), %25(s32)
; GFX10-NEXT: [[DEF3:%[0-9]+]]:sreg_32(s1) = IMPLICIT_DEF
; GFX10-NEXT: [[S_ANDN2_B32_1:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 %49(s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_1:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY11]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_1:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_1]](s1), [[S_AND_B32_1]](s1), implicit-def $scc
; GFX10-NEXT: [[S_ANDN2_B32_2:%[0-9]+]]:sreg_32_xm0_xexec(s1) = S_ANDN2_B32 [[COPY10]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_2:%[0-9]+]]:sreg_32_xm0_xexec(s1) = S_AND_B32 $exec_lo, [[COPY12]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_2:%[0-9]+]]:sreg_32_xm0_xexec(s1) = S_OR_B32 [[S_ANDN2_B32_2]](s1), [[S_AND_B32_2]](s1), implicit-def $scc
; GFX10-NEXT: SI_LOOP [[INT2]](s32), %bb.7, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.5
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.5:
; GFX10-NEXT: [[PHI4:%[0-9]+]]:_(s32) = G_PHI [[INT2]](s32), %bb.4
; GFX10-NEXT: [[COPY13:%[0-9]+]]:sreg_32(s1) = COPY [[S_OR_B32_1]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[PHI4]](s32)
; GFX10-NEXT: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[COPY13]](s1), [[COPY3]], [[COPY2]]
; GFX10-NEXT: [[INTRINSIC_CONVERGENT:%[0-9]+]]:_(s32) = G_INTRINSIC_CONVERGENT intrinsic(@llvm.amdgcn.readfirstlane), [[SELECT]](s32)
; GFX10-NEXT: $sgpr0 = COPY [[INTRINSIC_CONVERGENT]](s32)
; GFX10-NEXT: SI_RETURN_TO_EPILOG implicit $sgpr0
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.6:
; GFX10-NEXT: successors: %bb.2(0x80000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI5:%[0-9]+]]:_(s32) = G_PHI [[INT1]](s32), %bb.3
; GFX10-NEXT: [[C3:%[0-9]+]]:_(s1) = G_CONSTANT i1 false
; GFX10-NEXT: [[COPY14:%[0-9]+]]:sreg_32(s1) = COPY [[C3]](s1)
; GFX10-NEXT: G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), [[PHI5]](s32)
; GFX10-NEXT: [[S_ANDN2_B32_3:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 %42(s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_3:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY14]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_3:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_3]](s1), [[S_AND_B32_3]](s1), implicit-def $scc
; GFX10-NEXT: [[DEF4:%[0-9]+]]:sreg_32_xm0_xexec(s1) = IMPLICIT_DEF
; GFX10-NEXT: G_BR %bb.2
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: bb.7:
; GFX10-NEXT: successors: %bb.1(0x40000000), %bb.2(0x40000000)
; GFX10-NEXT: {{ $}}
; GFX10-NEXT: [[PHI6:%[0-9]+]]:sreg_32_xm0_xexec(s1) = PHI [[COPY6]](s1), %bb.0, [[S_OR_B32_]](s1), %bb.2, [[S_OR_B32_2]](s1), %bb.4
; GFX10-NEXT: [[PHI7:%[0-9]+]]:sreg_32(s1) = PHI [[DEF2]](s1), %bb.0, [[PHI7]](s1), %bb.2, [[S_OR_B32_1]](s1), %bb.4
; GFX10-NEXT: [[PHI8:%[0-9]+]]:sreg_32(s1) = PHI [[DEF1]](s1), %bb.0, [[PHI1]](s1), %bb.2, [[DEF3]](s1), %bb.4
; GFX10-NEXT: [[PHI9:%[0-9]+]]:_(s32) = G_PHI [[INT2]](s32), %bb.4, [[PHI9]](s32), %bb.2, [[C]](s32), %bb.0
; GFX10-NEXT: [[PHI10:%[0-9]+]]:_(s32) = G_PHI [[C]](s32), %bb.4, [[INT]](s32), %bb.2, [[C]](s32), %bb.0
; GFX10-NEXT: [[COPY15:%[0-9]+]]:sreg_32_xm0_xexec(s1) = COPY [[PHI6]](s1)
; GFX10-NEXT: [[COPY16:%[0-9]+]]:sreg_32(s1) = COPY [[PHI7]](s1)
; GFX10-NEXT: [[COPY17:%[0-9]+]]:sreg_32(s1) = COPY [[PHI8]](s1)
; GFX10-NEXT: [[C4:%[0-9]+]]:_(s1) = G_CONSTANT i1 true
; GFX10-NEXT: [[COPY18:%[0-9]+]]:sreg_32(s1) = COPY [[C4]](s1)
; GFX10-NEXT: [[S_ANDN2_B32_4:%[0-9]+]]:sreg_32(s1) = S_ANDN2_B32 [[COPY17]](s1), $exec_lo, implicit-def $scc
; GFX10-NEXT: [[S_AND_B32_4:%[0-9]+]]:sreg_32(s1) = S_AND_B32 $exec_lo, [[COPY18]](s1), implicit-def $scc
; GFX10-NEXT: [[S_OR_B32_4:%[0-9]+]]:sreg_32(s1) = S_OR_B32 [[S_ANDN2_B32_4]](s1), [[S_AND_B32_4]](s1), implicit-def $scc
; GFX10-NEXT: [[COPY19:%[0-9]+]]:sreg_32(s1) = COPY [[S_OR_B32_4]](s1)
; GFX10-NEXT: [[SI_IF:%[0-9]+]]:sreg_32_xm0_xexec(s32) = SI_IF [[COPY15]](s1), %bb.2, implicit-def $exec, implicit-def $scc, implicit $exec
; GFX10-NEXT: G_BR %bb.1
bb.0:
successors: %bb.7(0x80000000)
liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s32) = COPY $vgpr2
%3:_(s32) = COPY $vgpr3
%4:_(s32) = COPY $vgpr4
%5:_(s32) = COPY $vgpr5
%6:_(s32) = G_CONSTANT i32 0
%7:_(s1) = G_IMPLICIT_DEF
%8:_(s1) = G_ICMP intpred(sgt), %4(s32), %1
G_BR %bb.7
bb.1:
successors: %bb.3(0x80000000)
%9:_(s32) = G_CONSTANT i32 0
%10:_(s1) = G_ICMP intpred(sle), %4(s32), %0
G_BR %bb.3
bb.2:
successors: %bb.4(0x40000000), %bb.7(0x40000000)
%11:_(s1) = G_PHI %12(s1), %bb.6, %7(s1), %bb.7
%13:_(s1) = G_PHI %12(s1), %bb.6, %14(s1), %bb.7
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %15(s32)
%16:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), %13(s1), %17(s32)
SI_LOOP %16(s32), %bb.7, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.4
bb.3:
successors: %bb.6(0x04000000), %bb.3(0x7c000000)
%18:_(s32) = G_PHI %9(s32), %bb.1, %19(s32), %bb.3
%19:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), %10(s1), %18(s32)
SI_LOOP %19(s32), %bb.3, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.6
bb.4:
successors: %bb.5(0x04000000), %bb.7(0x7c000000)
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %16(s32)
%20:_(s1) = G_ICMP intpred(sgt), %5(s32), %0
%21:_(s1) = G_CONSTANT i1 true
%22:_(s1) = G_XOR %8, %21
%23:_(s1) = G_OR %20, %22
%24:sreg_32_xm0_xexec(s32) = G_INTRINSIC intrinsic(@llvm.amdgcn.if.break), %23(s1), %25(s32)
SI_LOOP %24(s32), %bb.7, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.5
bb.5:
%26:_(s1) = G_PHI %20(s1), %bb.4
%27:_(s32) = G_PHI %24(s32), %bb.4
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %27(s32)
%28:_(s32) = G_SELECT %26(s1), %3, %2
%29:_(s32) = G_INTRINSIC_CONVERGENT intrinsic(@llvm.amdgcn.readfirstlane), %28(s32)
$sgpr0 = COPY %29(s32)
SI_RETURN_TO_EPILOG implicit $sgpr0
bb.6:
successors: %bb.2(0x80000000)
%30:_(s32) = G_PHI %19(s32), %bb.3
%12:_(s1) = G_CONSTANT i1 false
G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.amdgcn.end.cf), %30(s32)
G_BR %bb.2
bb.7:
successors: %bb.1(0x40000000), %bb.2(0x40000000)
%25:_(s32) = G_PHI %24(s32), %bb.4, %25(s32), %bb.2, %6(s32), %bb.0
%17:_(s32) = G_PHI %6(s32), %bb.4, %16(s32), %bb.2, %6(s32), %bb.0
%31:sreg_32_xm0_xexec(s1) = G_PHI %8(s1), %bb.0, %11(s1), %bb.2, %21(s1), %bb.4
%14:_(s1) = G_CONSTANT i1 true
%15:sreg_32_xm0_xexec(s32) = SI_IF %31(s1), %bb.2, implicit-def $exec, implicit-def $scc, implicit $exec
G_BR %bb.1
...