diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/fcmp.ll')
-rw-r--r-- | llvm/test/Transforms/InstCombine/fcmp.ll | 463 |
1 files changed, 0 insertions, 463 deletions
diff --git a/llvm/test/Transforms/InstCombine/fcmp.ll b/llvm/test/Transforms/InstCombine/fcmp.ll deleted file mode 100644 index be7aedc7c60..00000000000 --- a/llvm/test/Transforms/InstCombine/fcmp.ll +++ /dev/null @@ -1,463 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py -; RUN: opt -S -instcombine < %s | FileCheck %s - -declare half @llvm.fabs.f16(half) -declare double @llvm.fabs.f64(double) -declare <2 x float> @llvm.fabs.v2f32(<2 x float>) - -define i1 @fpext_fpext(float %x, float %y) { -; CHECK-LABEL: @fpext_fpext( -; CHECK-NEXT: [[CMP:%.*]] = fcmp nnan ogt float [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: ret i1 [[CMP]] -; - %ext1 = fpext float %x to double - %ext2 = fpext float %y to double - %cmp = fcmp nnan ogt double %ext1, %ext2 - ret i1 %cmp -} - -define i1 @fpext_constant(float %a) { -; CHECK-LABEL: @fpext_constant( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf ogt float [[A:%.*]], 1.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %ext = fpext float %a to double - %cmp = fcmp ninf ogt double %ext, 1.000000e+00 - ret i1 %cmp -} - -define <2 x i1> @fpext_constant_vec_splat(<2 x half> %a) { -; CHECK-LABEL: @fpext_constant_vec_splat( -; CHECK-NEXT: [[CMP:%.*]] = fcmp nnan ole <2 x half> [[A:%.*]], <half 0xH5140, half 0xH5140> -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %ext = fpext <2 x half> %a to <2 x double> - %cmp = fcmp nnan ole <2 x double> %ext, <double 42.0, double 42.0> - ret <2 x i1> %cmp -} - -define i1 @fpext_constant_lossy(float %a) { -; CHECK-LABEL: @fpext_constant_lossy( -; CHECK-NEXT: [[EXT:%.*]] = fpext float [[A:%.*]] to double -; CHECK-NEXT: [[CMP:%.*]] = fcmp ogt double [[EXT]], 0x3FF0000000000001 -; CHECK-NEXT: ret i1 [[CMP]] -; - %ext = fpext float %a to double - %cmp = fcmp ogt double %ext, 0x3FF0000000000001 ; more precision than float. - ret i1 %cmp -} - -define i1 @fpext_constant_denorm(float %a) { -; CHECK-LABEL: @fpext_constant_denorm( -; CHECK-NEXT: [[EXT:%.*]] = fpext float [[A:%.*]] to double -; CHECK-NEXT: [[CMP:%.*]] = fcmp ogt double [[EXT]], 0x36A0000000000000 -; CHECK-NEXT: ret i1 [[CMP]] -; - %ext = fpext float %a to double - %cmp = fcmp ogt double %ext, 0x36A0000000000000 ; denormal in float. - ret i1 %cmp -} - -define i1 @fneg_constant_swap_pred(float %x) { -; CHECK-LABEL: @fneg_constant_swap_pred( -; CHECK-NEXT: [[CMP:%.*]] = fcmp olt float [[X:%.*]], -1.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %neg = fsub float -0.0, %x - %cmp = fcmp ogt float %neg, 1.0 - ret i1 %cmp -} - -define <2 x i1> @fneg_constant_swap_pred_vec(<2 x float> %x) { -; CHECK-LABEL: @fneg_constant_swap_pred_vec( -; CHECK-NEXT: [[CMP:%.*]] = fcmp olt <2 x float> [[X:%.*]], <float -1.000000e+00, float -2.000000e+00> -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %neg = fsub <2 x float> <float -0.0, float -0.0>, %x - %cmp = fcmp ogt <2 x float> %neg, <float 1.0, float 2.0> - ret <2 x i1> %cmp -} - -define <2 x i1> @fneg_constant_swap_pred_vec_undef(<2 x float> %x) { -; CHECK-LABEL: @fneg_constant_swap_pred_vec_undef( -; CHECK-NEXT: [[CMP:%.*]] = fcmp olt <2 x float> [[X:%.*]], <float -1.000000e+00, float -2.000000e+00> -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %neg = fsub <2 x float> <float undef, float -0.0>, %x - %cmp = fcmp ogt <2 x float> %neg, <float 1.0, float 2.0> - ret <2 x i1> %cmp -} - -; The new fcmp should have the same FMF as the original. - -define i1 @fneg_fmf(float %x) { -; CHECK-LABEL: @fneg_fmf( -; CHECK-NEXT: [[R:%.*]] = fcmp fast oeq float [[X:%.*]], -4.200000e+01 -; CHECK-NEXT: ret i1 [[R]] -; - %n = fsub fast float -0.0, %x - %r = fcmp fast oeq float %n, 42.0 - ret i1 %r -} - -; The new fcmp should have the same FMF as the original, vector edition. - -define <2 x i1> @fcmp_fneg_fmf_vec(<2 x float> %x) { -; CHECK-LABEL: @fcmp_fneg_fmf_vec( -; CHECK-NEXT: [[R:%.*]] = fcmp reassoc nnan ule <2 x float> [[X:%.*]], <float -4.200000e+01, float 1.900000e+01> -; CHECK-NEXT: ret <2 x i1> [[R]] -; - %n = fsub nsz <2 x float> zeroinitializer, %x - %r = fcmp nnan reassoc uge <2 x float> %n, <float 42.0, float -19.0> - ret <2 x i1> %r -} - -define i1 @fneg_fneg_swap_pred(float %x, float %y) { -; CHECK-LABEL: @fneg_fneg_swap_pred( -; CHECK-NEXT: [[CMP:%.*]] = fcmp nnan ogt float [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: ret i1 [[CMP]] -; - %neg1 = fsub float -0.0, %x - %neg2 = fsub float -0.0, %y - %cmp = fcmp nnan olt float %neg1, %neg2 - ret i1 %cmp -} - -define <2 x i1> @fneg_fneg_swap_pred_vec(<2 x float> %x, <2 x float> %y) { -; CHECK-LABEL: @fneg_fneg_swap_pred_vec( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf ogt <2 x float> [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %neg1 = fsub <2 x float> <float -0.0, float -0.0>, %x - %neg2 = fsub <2 x float> <float -0.0, float -0.0>, %y - %cmp = fcmp ninf olt <2 x float> %neg1, %neg2 - ret <2 x i1> %cmp -} - -define <2 x i1> @fneg_fneg_swap_pred_vec_undef(<2 x float> %x, <2 x float> %y) { -; CHECK-LABEL: @fneg_fneg_swap_pred_vec_undef( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ogt <2 x float> [[X:%.*]], [[Y:%.*]] -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %neg1 = fsub <2 x float> <float -0.0, float undef>, %x - %neg2 = fsub <2 x float> <float undef, float -0.0>, %y - %cmp = fcmp olt <2 x float> %neg1, %neg2 - ret <2 x i1> %cmp -} - -define i1 @test7(float %x) { -; CHECK-LABEL: @test7( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ogt float [[X:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %ext = fpext float %x to ppc_fp128 - %cmp = fcmp ogt ppc_fp128 %ext, 0xM00000000000000000000000000000000 - ret i1 %cmp -} - -define float @test8(float %x) { -; CHECK-LABEL: @test8( -; CHECK-NEXT: [[CMP:%.*]] = fcmp olt float [[X:%.*]], 0.000000e+00 -; CHECK-NEXT: [[CONV2:%.*]] = uitofp i1 [[CMP]] to float -; CHECK-NEXT: ret float [[CONV2]] -; - %conv = fpext float %x to double - %cmp = fcmp olt double %conv, 0.000000e+00 - %conv1 = zext i1 %cmp to i32 - %conv2 = sitofp i32 %conv1 to float - ret float %conv2 -; Float comparison to zero shouldn't cast to double. -} - -define i1 @fabs_uge(double %a) { -; CHECK-LABEL: @fabs_uge( -; CHECK-NEXT: ret i1 true -; - %call = call double @llvm.fabs.f64(double %a) - %cmp = fcmp uge double %call, 0.0 - ret i1 %cmp -} - -define i1 @fabs_olt(half %a) { -; CHECK-LABEL: @fabs_olt( -; CHECK-NEXT: ret i1 false -; - %call = call half @llvm.fabs.f16(half %a) - %cmp = fcmp olt half %call, 0.0 - ret i1 %cmp -} - -define <2 x i1> @fabs_ole(<2 x float> %a) { -; CHECK-LABEL: @fabs_ole( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf oeq <2 x float> [[A:%.*]], zeroinitializer -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %call = call <2 x float> @llvm.fabs.v2f32(<2 x float> %a) - %cmp = fcmp ninf ole <2 x float> %call, zeroinitializer - ret <2 x i1> %cmp -} - -define <2 x i1> @fabs_ule(<2 x float> %a) { -; CHECK-LABEL: @fabs_ule( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf arcp ueq <2 x float> [[A:%.*]], zeroinitializer -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %call = call <2 x float> @llvm.fabs.v2f32(<2 x float> %a) - %cmp = fcmp ninf arcp ule <2 x float> %call, zeroinitializer - ret <2 x i1> %cmp -} - -define i1 @fabs_ogt(double %a) { -; CHECK-LABEL: @fabs_ogt( -; CHECK-NEXT: [[CMP:%.*]] = fcmp reassoc one double [[A:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %call = call double @llvm.fabs.f64(double %a) - %cmp = fcmp reassoc ogt double %call, 0.0 - ret i1 %cmp -} - -define i1 @fabs_ugt(double %a) { -; CHECK-LABEL: @fabs_ugt( -; CHECK-NEXT: [[CMP:%.*]] = fcmp reassoc ninf une double [[A:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %call = call double @llvm.fabs.f64(double %a) - %cmp = fcmp ninf reassoc ugt double %call, 0.0 - ret i1 %cmp -} - -define i1 @fabs_oge(double %a) { -; CHECK-LABEL: @fabs_oge( -; CHECK-NEXT: [[CMP:%.*]] = fcmp afn ord double [[A:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %call = call double @llvm.fabs.f64(double %a) - %cmp = fcmp afn oge double %call, 0.0 - ret i1 %cmp -} - -define i1 @fabs_ult(double %a) { -; CHECK-LABEL: @fabs_ult( -; CHECK-NEXT: [[CMP:%.*]] = fcmp reassoc arcp uno double [[A:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %call = call double @llvm.fabs.f64(double %a) - %cmp = fcmp reassoc arcp ult double %call, 0.0 - ret i1 %cmp -} - -define <2 x i1> @fabs_ult_nnan(<2 x float> %a) { -; CHECK-LABEL: @fabs_ult_nnan( -; CHECK-NEXT: ret <2 x i1> zeroinitializer -; - %call = call <2 x float> @llvm.fabs.v2f32(<2 x float> %a) - %cmp = fcmp nnan reassoc arcp ult <2 x float> %call, zeroinitializer - ret <2 x i1> %cmp -} - -define i1 @fabs_une(half %a) { -; CHECK-LABEL: @fabs_une( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf une half [[A:%.*]], 0xH0000 -; CHECK-NEXT: ret i1 [[CMP]] -; - %call = call half @llvm.fabs.f16(half %a) - %cmp = fcmp ninf une half %call, 0.0 - ret i1 %cmp -} - -define i1 @fabs_oeq(double %a) { -; CHECK-LABEL: @fabs_oeq( -; CHECK-NEXT: [[CMP:%.*]] = fcmp reassoc ninf oeq double [[A:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %call = call double @llvm.fabs.f64(double %a) - %cmp = fcmp ninf reassoc oeq double %call, 0.0 - ret i1 %cmp -} - -define i1 @fabs_one(double %a) { -; CHECK-LABEL: @fabs_one( -; CHECK-NEXT: [[CMP:%.*]] = fcmp fast one double [[A:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %call = call double @llvm.fabs.f64(double %a) - %cmp = fcmp fast one double %call, 0.0 - ret i1 %cmp -} - -define <2 x i1> @fabs_ueq(<2 x float> %a) { -; CHECK-LABEL: @fabs_ueq( -; CHECK-NEXT: [[CMP:%.*]] = fcmp arcp ueq <2 x float> [[A:%.*]], zeroinitializer -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %call = call <2 x float> @llvm.fabs.v2f32(<2 x float> %a) - %cmp = fcmp arcp ueq <2 x float> %call, zeroinitializer - ret <2 x i1> %cmp -} - -define <2 x i1> @fabs_ord(<2 x float> %a) { -; CHECK-LABEL: @fabs_ord( -; CHECK-NEXT: [[CMP:%.*]] = fcmp arcp ord <2 x float> [[A:%.*]], zeroinitializer -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %call = call <2 x float> @llvm.fabs.v2f32(<2 x float> %a) - %cmp = fcmp arcp ord <2 x float> %call, zeroinitializer - ret <2 x i1> %cmp -} - -define <2 x i1> @fabs_uno(<2 x float> %a) { -; CHECK-LABEL: @fabs_uno( -; CHECK-NEXT: [[CMP:%.*]] = fcmp arcp uno <2 x float> [[A:%.*]], zeroinitializer -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %call = call <2 x float> @llvm.fabs.v2f32(<2 x float> %a) - %cmp = fcmp arcp uno <2 x float> %call, zeroinitializer - ret <2 x i1> %cmp -} - -; Don't crash. -define i32 @test17(double %a, double (double)* %p) { -; CHECK-LABEL: @test17( -; CHECK-NEXT: [[CALL:%.*]] = tail call double [[P:%.*]](double [[A:%.*]]) -; CHECK-NEXT: [[CMP:%.*]] = fcmp ueq double [[CALL]], 0.000000e+00 -; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 -; CHECK-NEXT: ret i32 [[CONV]] -; - %call = tail call double %p(double %a) - %cmp = fcmp ueq double %call, 0.000000e+00 - %conv = zext i1 %cmp to i32 - ret i32 %conv -} - -; Can fold fcmp with undef on one side by choosing NaN for the undef -define i32 @test18_undef_unordered(float %a) { -; CHECK-LABEL: @test18_undef_unordered( -; CHECK-NEXT: ret i32 1 -; - %cmp = fcmp ueq float %a, undef - %conv = zext i1 %cmp to i32 - ret i32 %conv -} -; Can fold fcmp with undef on one side by choosing NaN for the undef -define i32 @test18_undef_ordered(float %a) { -; CHECK-LABEL: @test18_undef_ordered( -; CHECK-NEXT: ret i32 0 -; - %cmp = fcmp oeq float %a, undef - %conv = zext i1 %cmp to i32 - ret i32 %conv -} - -; Can fold fcmp with undef on both side -; fcmp u_pred undef, undef -> true -; fcmp o_pred undef, undef -> false -; because whatever you choose for the first undef -; you can choose NaN for the other undef -define i1 @test19_undef_unordered() { -; CHECK-LABEL: @test19_undef_unordered( -; CHECK-NEXT: ret i1 true -; - %cmp = fcmp ueq float undef, undef - ret i1 %cmp -} - -define i1 @test19_undef_ordered() { -; CHECK-LABEL: @test19_undef_ordered( -; CHECK-NEXT: ret i1 false -; - %cmp = fcmp oeq float undef, undef - ret i1 %cmp -} - -; Can fold 1.0 / X < 0.0 --> X < 0 with ninf -define i1 @test20_recipX_olt_0(float %X) { -; CHECK-LABEL: @test20_recipX_olt_0( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf olt float [[X:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %div = fdiv ninf float 1.0, %X - %cmp = fcmp ninf olt float %div, 0.0 - ret i1 %cmp -} - -; Can fold -2.0 / X <= 0.0 --> X >= 0 with ninf -define i1 @test21_recipX_ole_0(float %X) { -; CHECK-LABEL: @test21_recipX_ole_0( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf oge float [[X:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %div = fdiv ninf float -2.0, %X - %cmp = fcmp ninf ole float %div, 0.0 - ret i1 %cmp -} - -; Can fold 2.0 / X > 0.0 --> X > 0 with ninf -define i1 @test22_recipX_ogt_0(float %X) { -; CHECK-LABEL: @test22_recipX_ogt_0( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf ogt float [[X:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %div = fdiv ninf float 2.0, %X - %cmp = fcmp ninf ogt float %div, 0.0 - ret i1 %cmp -} - -; Can fold -1.0 / X >= 0.0 --> X <= 0 with ninf -define i1 @test23_recipX_oge_0(float %X) { -; CHECK-LABEL: @test23_recipX_oge_0( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf ole float [[X:%.*]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %div = fdiv ninf float -1.0, %X - %cmp = fcmp ninf oge float %div, 0.0 - ret i1 %cmp -} - -; Do not fold 1.0 / X > 0.0 when ninf is missing -define i1 @test24_recipX_noninf_cmp(float %X) { -; CHECK-LABEL: @test24_recipX_noninf_cmp( -; CHECK-NEXT: [[DIV:%.*]] = fdiv ninf float 2.000000e+00, [[X:%.*]] -; CHECK-NEXT: [[CMP:%.*]] = fcmp ogt float [[DIV]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %div = fdiv ninf float 2.0, %X - %cmp = fcmp ogt float %div, 0.0 - ret i1 %cmp -} - -; Do not fold 1.0 / X > 0.0 when ninf is missing -define i1 @test25_recipX_noninf_div(float %X) { -; CHECK-LABEL: @test25_recipX_noninf_div( -; CHECK-NEXT: [[DIV:%.*]] = fdiv float 2.000000e+00, [[X:%.*]] -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf ogt float [[DIV]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %div = fdiv float 2.0, %X - %cmp = fcmp ninf ogt float %div, 0.0 - ret i1 %cmp -} - -; Do not fold 1.0 / X > 0.0 with unordered predicates -define i1 @test26_recipX_unorderd(float %X) { -; CHECK-LABEL: @test26_recipX_unorderd( -; CHECK-NEXT: [[DIV:%.*]] = fdiv ninf float 2.000000e+00, [[X:%.*]] -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf ugt float [[DIV]], 0.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] -; - %div = fdiv ninf float 2.0, %X - %cmp = fcmp ninf ugt float %div, 0.0 - ret i1 %cmp -} - -; Fold <-1.0, -1.0> / X > <-0.0, -0.0> -define <2 x i1> @test27_recipX_gt_vecsplat(<2 x float> %X) { -; CHECK-LABEL: @test27_recipX_gt_vecsplat( -; CHECK-NEXT: [[CMP:%.*]] = fcmp ninf olt <2 x float> [[X:%.*]], zeroinitializer -; CHECK-NEXT: ret <2 x i1> [[CMP]] -; - %div = fdiv ninf <2 x float> <float -1.0, float -1.0>, %X - %cmp = fcmp ninf ogt <2 x float> %div, <float -0.0, float -0.0> - ret <2 x i1> %cmp -} - |