e0ac46e69d
This reverts commit d618f1c3b1.
This commit wasn't reviewed ahead of time and significant concerns were
raised immediately after it landed. According to our developer policy
this warrants immediate revert of the commit.
https://llvm.org/docs/DeveloperPolicy.html#patch-reversion-policy
Differential Revision: https://reviews.llvm.org/D155509
65 lines
3.0 KiB
C++
65 lines
3.0 KiB
C++
// RUN: %clang_cc1 %std_cxx11-14 %s -O0 -triple=x86_64-apple-darwin -target-feature +avx2 -fmax-type-align=16 -emit-llvm -o - -Werror | FileCheck %s --check-prefixes=CHECK,PRE17
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// RUN: %clang_cc1 %std_cxx17- %s -O0 -triple=x86_64-apple-darwin -target-feature +avx2 -fmax-type-align=16 -emit-llvm -o - -Werror | FileCheck %s --check-prefixes=CHECK,CXX17
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// rdar://16254558
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typedef float AVX2Float __attribute__((__vector_size__(32)));
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#if __cplusplus < 202002L
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volatile
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#endif
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float TestAlign(void)
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{
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volatile AVX2Float *p = new AVX2Float;
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*p = *p;
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AVX2Float r = *p;
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return r[0];
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}
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// CHECK: [[R:%.*]] = alloca <8 x float>, align 32
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// PRE17-NEXT: [[CALL:%.*]] = call noalias noundef nonnull ptr @_Znwm(i64 noundef 32)
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// CXX17-NEXT: [[CALL:%.*]] = call noalias noundef nonnull align 32 ptr @_ZnwmSt11align_val_t(i64 noundef 32, i64 noundef 32)
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// CHECK-NEXT: store ptr [[CALL]], ptr [[P:%.*]], align 8
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// CHECK-NEXT: [[ONE:%.*]] = load ptr, ptr [[P]], align 8
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// CHECK-NEXT: [[TWO:%.*]] = load volatile <8 x float>, ptr [[ONE]], align 16
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// CHECK-NEXT: [[THREE:%.*]] = load ptr, ptr [[P]], align 8
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// CHECK-NEXT: store volatile <8 x float> [[TWO]], ptr [[THREE]], align 16
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// CHECK-NEXT: [[FOUR:%.*]] = load ptr, ptr [[P]], align 8
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// CHECK-NEXT: [[FIVE:%.*]] = load volatile <8 x float>, ptr [[FOUR]], align 16
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// CHECK-NEXT: store <8 x float> [[FIVE]], ptr [[R]], align 32
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// CHECK-NEXT: [[SIX:%.*]] = load <8 x float>, ptr [[R]], align 32
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// CHECK-NEXT: [[VECEXT:%.*]] = extractelement <8 x float> [[SIX]], i32 0
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// CHECK-NEXT: ret float [[VECEXT]]
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typedef float AVX2Float_Explicitly_aligned __attribute__((__vector_size__(32))) __attribute__((aligned (32)));
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typedef AVX2Float_Explicitly_aligned AVX2Float_indirect;
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typedef AVX2Float_indirect AVX2Float_use_existing_align;
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#if __cplusplus < 202002L
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volatile
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#endif
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float TestAlign2(void)
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{
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volatile AVX2Float_use_existing_align *p = new AVX2Float_use_existing_align;
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*p = *p;
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AVX2Float_use_existing_align r = *p;
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return r[0];
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}
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// CHECK: [[R:%.*]] = alloca <8 x float>, align 32
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// PRE17-NEXT: [[CALL:%.*]] = call noalias noundef nonnull ptr @_Znwm(i64 noundef 32)
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// CXX17-NEXT: [[CALL:%.*]] = call noalias noundef nonnull align 32 ptr @_ZnwmSt11align_val_t(i64 noundef 32, i64 noundef 32)
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// CHECK-NEXT: store ptr [[CALL]], ptr [[P:%.*]], align 8
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// CHECK-NEXT: [[ONE:%.*]] = load ptr, ptr [[P]], align 8
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// CHECK-NEXT: [[TWO:%.*]] = load volatile <8 x float>, ptr [[ONE]], align 32
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// CHECK-NEXT: [[THREE:%.*]] = load ptr, ptr [[P]], align 8
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// CHECK-NEXT: store volatile <8 x float> [[TWO]], ptr [[THREE]], align 32
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// CHECK-NEXT: [[FOUR:%.*]] = load ptr, ptr [[P]], align 8
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// CHECK-NEXT: [[FIVE:%.*]] = load volatile <8 x float>, ptr [[FOUR]], align 32
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// CHECK-NEXT: store <8 x float> [[FIVE]], ptr [[R]], align 32
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// CHECK-NEXT: [[SIX:%.*]] = load <8 x float>, ptr [[R]], align 32
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// CHECK-NEXT: [[VECEXT:%.*]] = extractelement <8 x float> [[SIX]], i32 0
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// CHECK-NEXT: ret float [[VECEXT]]
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