| ; RUN: opt -S -instcombine < %s | FileCheck %s |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_0_uitofp( |
| ; CHECK-NEXT: icmp eq i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_n0_uitofp( |
| ; CHECK-NEXT: icmp eq i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_n0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp oeq float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_0_sitofp( |
| ; CHECK-NEXT: icmp eq i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_n0_sitofp( |
| ; CHECK-NEXT: icmp eq i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_n0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_one_int_0_uitofp( |
| ; CHECK-NEXT: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_one_int_0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp one float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_one_int_n0_uitofp( |
| ; CHECK-NEXT: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_one_int_n0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp one float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_one_int_0_sitofp( |
| ; CHECK-NEXT: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_one_int_0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp one float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_one_int_n0_sitofp( |
| ; CHECK-NEXT: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_one_int_n0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp one float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ueq_int_0_uitofp( |
| ; CHECK-NEXT: icmp eq i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ueq_int_0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp ueq float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ueq_int_n0_uitofp( |
| ; CHECK-NEXT: icmp eq i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ueq_int_n0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp ueq float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ueq_int_0_sitofp( |
| ; CHECK-NEXT: icmp eq i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ueq_int_0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp ueq float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ueq_int_n0_sitofp( |
| ; CHECK-NEXT: icmp eq i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ueq_int_n0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp ueq float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_une_int_0_uitofp( |
| ; CHECK-NEXT: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_une_int_0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp une float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_une_int_n0_uitofp( |
| ; CHECK-NEXT: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_une_int_n0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp une float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_une_int_0_sitofp( |
| ; CHECK-NEXT: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_une_int_0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp une float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_une_int_n0_sitofp( |
| ; CHECK-NEXT: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_une_int_n0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp une float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ogt_int_0_uitofp( |
| ; CHECK: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ogt_int_0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp ogt float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ogt_int_n0_uitofp( |
| ; CHECK: icmp ne i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ogt_int_n0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp ogt float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ogt_int_0_sitofp( |
| ; CHECK: icmp sgt i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ogt_int_0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp ogt float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ogt_int_n0_sitofp( |
| ; CHECK: icmp sgt i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ogt_int_n0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp ogt float %f, -0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ole_int_0_uitofp( |
| ; CHECK: icmp eq i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ole_int_0_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp ole float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ole_int_0_sitofp( |
| ; CHECK: icmp slt i32 %i, 1 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_ole_int_0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp ole float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_olt_int_0_sitofp( |
| ; CHECK: icmp slt i32 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_olt_int_0_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp olt float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i64_cast_cmp_oeq_int_0_uitofp( |
| ; CHECK-NEXT: icmp eq i64 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i64_cast_cmp_oeq_int_0_uitofp(i64 %i) { |
| %f = uitofp i64 %i to float |
| %cmp = fcmp oeq float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i64_cast_cmp_oeq_int_0_sitofp( |
| ; CHECK-NEXT: icmp eq i64 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i64_cast_cmp_oeq_int_0_sitofp(i64 %i) { |
| %f = sitofp i64 %i to float |
| %cmp = fcmp oeq float %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i64_cast_cmp_oeq_int_0_uitofp_half( |
| ; CHECK-NEXT: icmp eq i64 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i64_cast_cmp_oeq_int_0_uitofp_half(i64 %i) { |
| %f = uitofp i64 %i to half |
| %cmp = fcmp oeq half %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i64_cast_cmp_oeq_int_0_sitofp_half( |
| ; CHECK-NEXT: icmp eq i64 %i, 0 |
| ; CHECK-NEXT: ret |
| define i1 @i64_cast_cmp_oeq_int_0_sitofp_half(i64 %i) { |
| %f = sitofp i64 %i to half |
| %cmp = fcmp oeq half %f, 0.0 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_0_uitofp_ppcf128( |
| ; CHECK: uitofp |
| ; CHECK: fcmp oeq |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_0_uitofp_ppcf128(i32 %i) { |
| %f = uitofp i32 %i to ppc_fp128 |
| %cmp = fcmp oeq ppc_fp128 %f, 0xM00000000000000000000000000000000 |
| ret i1 %cmp |
| } |
| |
| ; Since 0xFFFFFF fits in a float, and one less and |
| ; one more than it also fits without rounding, the |
| ; test can be optimized to an integer compare. |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_i24max_uitofp( |
| ; CHECK: icmp eq i32 %i, 16777215 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_i24max_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x416FFFFFE0000000 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_i24max_sitofp( |
| ; CHECK: icmp eq i32 %i, 16777215 |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_i24max_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x416FFFFFE0000000 |
| ret i1 %cmp |
| } |
| |
| ; Though 0x1000000 fits in a float, one more than it |
| ; would round to it too, hence a single integer comparison |
| ; does not suffice. |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_i24maxp1_uitofp( |
| ; CHECK: uitofp |
| ; CHECK: fcmp oeq |
| |
| ; XCHECK: icmp eq i32 %i, 16777216 |
| ; XCHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_i24maxp1_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x4170000000000000 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_i24maxp1_sitofp( |
| ; CHECK: sitofp |
| ; CHECK: fcmp oeq |
| |
| ; XCHECK: icmp eq i32 %i, 16777216 |
| ; XCHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_i24maxp1_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x4170000000000000 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_i32umax_uitofp( |
| ; CHECK: uitofp |
| ; CHECK: fcmp oeq |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_i32umax_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x41F0000000000000 |
| ret i1 %cmp |
| } |
| |
| ; 32-bit unsigned integer cannot possibly round up to 1<<33 |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_big_uitofp( |
| ; CHECK-NEXT: ret i1 false |
| define i1 @i32_cast_cmp_oeq_int_big_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x4200000000000000 |
| ret i1 %cmp |
| } |
| |
| ; 32-bit signed integer cannot possibly round up to 1<<32 |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_i32umax_sitofp( |
| ; CHECK-NEXT: ret i1 false |
| define i1 @i32_cast_cmp_oeq_int_i32umax_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x41F0000000000000 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_i32imin_sitofp( |
| ; CHECK: sitofp |
| ; CHECK: fcmp oeq |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_i32imin_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0xC1E0000000000000 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_i32imax_uitofp( |
| ; CHECK: uitofp |
| ; CHECK: fcmp oeq |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_i32imax_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x41E0000000000000 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_i32imax_sitofp( |
| ; CHECK: sitofp |
| ; CHECK: fcmp oeq |
| ; CHECK-NEXT: ret |
| define i1 @i32_cast_cmp_oeq_int_i32imax_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x41E0000000000000 |
| ret i1 %cmp |
| } |
| |
| ; 32-bit signed integer cannot possibly round to -1<<32 |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_negi32umax_sitofp( |
| ; CHECK-NEXT: ret i1 false |
| define i1 @i32_cast_cmp_oeq_int_negi32umax_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0xC1F0000000000000 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_half_uitofp( |
| ; CHECK: ret i1 false |
| define i1 @i32_cast_cmp_oeq_half_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0.5 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_half_sitofp( |
| ; CHECK: ret i1 false |
| define i1 @i32_cast_cmp_oeq_half_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0.5 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_one_half_uitofp( |
| ; CHECK: ret i1 true |
| define i1 @i32_cast_cmp_one_half_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp one float %f, 0.5 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_one_half_sitofp( |
| ; CHECK: ret i1 true |
| define i1 @i32_cast_cmp_one_half_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp one float %f, 0.5 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ueq_half_uitofp( |
| ; CHECK: ret i1 false |
| define i1 @i32_cast_cmp_ueq_half_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp ueq float %f, 0.5 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_ueq_half_sitofp( |
| ; CHECK: ret i1 false |
| define i1 @i32_cast_cmp_ueq_half_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp ueq float %f, 0.5 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_une_half_uitofp( |
| ; CHECK: ret i1 true |
| define i1 @i32_cast_cmp_une_half_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp une float %f, 0.5 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_une_half_sitofp( |
| ; CHECK: ret i1 true |
| define i1 @i32_cast_cmp_une_half_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp une float %f, 0.5 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_inf_uitofp( |
| ; CHECK-NEXT: ret i1 false |
| define i1 @i32_cast_cmp_oeq_int_inf_uitofp(i32 %i) { |
| %f = uitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x7FF0000000000000 |
| ret i1 %cmp |
| } |
| |
| ; CHECK-LABEL: @i32_cast_cmp_oeq_int_inf_sitofp( |
| ; CHECK-NEXT: ret i1 false |
| define i1 @i32_cast_cmp_oeq_int_inf_sitofp(i32 %i) { |
| %f = sitofp i32 %i to float |
| %cmp = fcmp oeq float %f, 0x7FF0000000000000 |
| ret i1 %cmp |
| } |
| |
| ; An i128 could round to an IEEE single-precision infinity. |
| ; CHECK-LABEL: @i128_cast_cmp_oeq_int_inf_uitofp( |
| ; CHECK: uitofp |
| ; CHECK: fcmp oeq |
| ; CHECK-NEXT: ret |
| define i1 @i128_cast_cmp_oeq_int_inf_uitofp(i128 %i) { |
| %f = uitofp i128 %i to float |
| %cmp = fcmp oeq float %f, 0x7FF0000000000000 |
| ret i1 %cmp |
| } |
