llvm/test/CodeGen/NVPTX/flo.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc < %s | FileCheck %s
; RUN: %if ptxas %{ llc < %s | %ptxas-verify %}

target triple = "nvptx64-nvidia-cuda"

define i32 @flo_1(i32 %a) {
; CHECK-LABEL: flo_1(
; CHECK:       {
; CHECK-NEXT:    .reg .b32 %r<3>;
; CHECK-EMPTY:
; CHECK-NEXT:  // %bb.0:
; CHECK-NEXT:    ld.param.u32 %r1, [flo_1_param_0];
; CHECK-NEXT:    bfind.s32 %r2, %r1;
; CHECK-NEXT:    st.param.b32 [func_retval0], %r2;
; CHECK-NEXT:    ret;
  %r = call i32 @llvm.nvvm.flo.s.i32(i32 %a, i1 false)
  ret i32 %r
}


define i32 @flo_2(i32 %a) {
; CHECK-LABEL: flo_2(
; CHECK:       {
; CHECK-NEXT:    .reg .b32 %r<3>;
; CHECK-EMPTY:
; CHECK-NEXT:  // %bb.0:
; CHECK-NEXT:    ld.param.u32 %r1, [flo_2_param_0];
; CHECK-NEXT:    bfind.shiftamt.s32 %r2, %r1;
; CHECK-NEXT:    st.param.b32 [func_retval0], %r2;
; CHECK-NEXT:    ret;
  %r = call i32 @llvm.nvvm.flo.s.i32(i32 %a, i1 true)
  ret i32 %r
}

define i32 @flo_3(i32 %a) {
; CHECK-LABEL: flo_3(
; CHECK:       {
; CHECK-NEXT:    .reg .b32 %r<3>;
; CHECK-EMPTY:
; CHECK-NEXT:  // %bb.0:
; CHECK-NEXT:    ld.param.u32 %r1, [flo_3_param_0];
; CHECK-NEXT:    bfind.u32 %r2, %r1;
; CHECK-NEXT:    st.param.b32 [func_retval0], %r2;
; CHECK-NEXT:    ret;
  %r = call i32 @llvm.nvvm.flo.u.i32(i32 %a, i1 false)
  ret i32 %r
}


define i32 @flo_4(i32 %a) {
; CHECK-LABEL: flo_4(
; CHECK:       {
; CHECK-NEXT:    .reg .b32 %r<3>;
; CHECK-EMPTY:
; CHECK-NEXT:  // %bb.0:
; CHECK-NEXT:    ld.param.u32 %r1, [flo_4_param_0];
; CHECK-NEXT:    bfind.shiftamt.u32 %r2, %r1;
; CHECK-NEXT:    st.param.b32 [func_retval0], %r2;
; CHECK-NEXT:    ret;
  %r = call i32 @llvm.nvvm.flo.u.i32(i32 %a, i1 true)
  ret i32 %r
}



define i32 @flo_5(i64 %a) {
; CHECK-LABEL: flo_5(
; CHECK:       {
; CHECK-NEXT:    .reg .b32 %r<2>;
; CHECK-NEXT:    .reg .b64 %rd<2>;
; CHECK-EMPTY:
; CHECK-NEXT:  // %bb.0:
; CHECK-NEXT:    ld.param.u64 %rd1, [flo_5_param_0];
; CHECK-NEXT:    bfind.s64 %r1, %rd1;
; CHECK-NEXT:    st.param.b32 [func_retval0], %r1;
; CHECK-NEXT:    ret;
  %r = call i32 @llvm.nvvm.flo.s.i64(i64 %a, i1 false)
  ret i32 %r
}


define i32 @flo_6(i64 %a) {
; CHECK-LABEL: flo_6(
; CHECK:       {
; CHECK-NEXT:    .reg .b32 %r<2>;
; CHECK-NEXT:    .reg .b64 %rd<2>;
; CHECK-EMPTY:
; CHECK-NEXT:  // %bb.0:
; CHECK-NEXT:    ld.param.u64 %rd1, [flo_6_param_0];
; CHECK-NEXT:    bfind.shiftamt.s64 %r1, %rd1;
; CHECK-NEXT:    st.param.b32 [func_retval0], %r1;
; CHECK-NEXT:    ret;
  %r = call i32 @llvm.nvvm.flo.s.i64(i64 %a, i1 true)
  ret i32 %r
}

define i32 @flo_7(i64 %a) {
; CHECK-LABEL: flo_7(
; CHECK:       {
; CHECK-NEXT:    .reg .b32 %r<2>;
; CHECK-NEXT:    .reg .b64 %rd<2>;
; CHECK-EMPTY:
; CHECK-NEXT:  // %bb.0:
; CHECK-NEXT:    ld.param.u64 %rd1, [flo_7_param_0];
; CHECK-NEXT:    bfind.u64 %r1, %rd1;
; CHECK-NEXT:    st.param.b32 [func_retval0], %r1;
; CHECK-NEXT:    ret;
  %r = call i32 @llvm.nvvm.flo.u.i64(i64 %a, i1 false)
  ret i32 %r
}


define i32 @flo_8(i64 %a) {
; CHECK-LABEL: flo_8(
; CHECK:       {
; CHECK-NEXT:    .reg .b32 %r<2>;
; CHECK-NEXT:    .reg .b64 %rd<2>;
; CHECK-EMPTY:
; CHECK-NEXT:  // %bb.0:
; CHECK-NEXT:    ld.param.u64 %rd1, [flo_8_param_0];
; CHECK-NEXT:    bfind.shiftamt.u64 %r1, %rd1;
; CHECK-NEXT:    st.param.b32 [func_retval0], %r1;
; CHECK-NEXT:    ret;
  %r = call i32 @llvm.nvvm.flo.u.i64(i64 %a, i1 true)
  ret i32 %r
}

declare i32 @llvm.nvvm.flo.s.i32(i32, i1)
declare i32 @llvm.nvvm.flo.u.i32(i32, i1)
declare i32 @llvm.nvvm.flo.s.i64(i64, i1)
declare i32 @llvm.nvvm.flo.u.i64(i64, i1)