llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-backend-amdgpu Author: Matt Arsenault (arsenm) <details> <summary>Changes</summary> --- Full diff: https://github.com/llvm/llvm-project/pull/130915.diff 2 Files Affected: - (modified) llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp (+3) - (modified) llvm/test/Transforms/InstCombine/AMDGPU/amdgcn-intrinsics.ll (+16) ``````````diff diff --git a/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp b/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp index 5314738b2b8ac..bf53018439e9f 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp +++ b/llvm/lib/Target/AMDGPU/AMDGPUInstCombineIntrinsic.cpp @@ -636,6 +636,9 @@ GCNTTIImpl::instCombineIntrinsic(InstCombiner &IC, IntrinsicInst &II) const { return IC.replaceInstUsesWith(II, ConstantInt::get(II.getType(), Exp)); } + if (isa<PoisonValue>(Src)) + return IC.replaceInstUsesWith(II, PoisonValue::get(II.getType())); + if (isa<UndefValue>(Src)) { return IC.replaceInstUsesWith(II, UndefValue::get(II.getType())); } diff --git a/llvm/test/Transforms/InstCombine/AMDGPU/amdgcn-intrinsics.ll b/llvm/test/Transforms/InstCombine/AMDGPU/amdgcn-intrinsics.ll index fca3860240294..78606b1c869d1 100644 --- a/llvm/test/Transforms/InstCombine/AMDGPU/amdgcn-intrinsics.ll +++ b/llvm/test/Transforms/InstCombine/AMDGPU/amdgcn-intrinsics.ll @@ -274,6 +274,14 @@ declare float @llvm.amdgcn.frexp.mant.f32(float) nounwind readnone declare double @llvm.amdgcn.frexp.mant.f64(double) nounwind readnone +define float @test_constant_fold_frexp_mant_f32_poison() nounwind { +; CHECK-LABEL: @test_constant_fold_frexp_mant_f32_poison( +; CHECK-NEXT: ret float poison +; + %val = call float @llvm.amdgcn.frexp.mant.f32(float poison) + ret float %val +} + define float @test_constant_fold_frexp_mant_f32_undef() nounwind { ; CHECK-LABEL: @test_constant_fold_frexp_mant_f32_undef( ; CHECK-NEXT: ret float undef @@ -442,6 +450,14 @@ define double @test_constant_fold_frexp_mant_f64_min_num() nounwind { declare i32 @llvm.amdgcn.frexp.exp.f32(float) nounwind readnone declare i32 @llvm.amdgcn.frexp.exp.f64(double) nounwind readnone +define i32 @test_constant_fold_frexp_exp_f32_poison() nounwind { +; CHECK-LABEL: @test_constant_fold_frexp_exp_f32_poison( +; CHECK-NEXT: ret i32 poison +; + %val = call i32 @llvm.amdgcn.frexp.exp.f32(float poison) + ret i32 %val +} + define i32 @test_constant_fold_frexp_exp_f32_undef() nounwind { ; CHECK-LABEL: @test_constant_fold_frexp_exp_f32_undef( ; CHECK-NEXT: ret i32 undef `````````` </details> https://github.com/llvm/llvm-project/pull/130915 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
