| 1 | // RUN: %clang_cc1 -x c++ %s -O0 -triple=x86_64-apple-darwin -target-feature +avx2 -fmax-type-align=16 -emit-llvm -o - -Werror | FileCheck %s |
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| 2 | // rdar://16254558 |
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| 3 | |
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| 4 | typedef float AVX2Float __attribute__((__vector_size__(32))); |
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| 5 | |
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| 6 | |
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| 7 | volatile float TestAlign(void) |
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| 8 | { |
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| 9 | volatile AVX2Float *p = new AVX2Float; |
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| 10 | *p = *p; |
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| 11 | AVX2Float r = *p; |
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| 12 | return r[0]; |
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| 13 | } |
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| 14 | |
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| 15 | // CHECK: [[R:%.*]] = alloca <8 x float>, align 32 |
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| 16 | // CHECK-NEXT: [[CALL:%.*]] = call i8* @_Znwm(i64 32) |
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| 17 | // CHECK-NEXT: [[ZERO:%.*]] = bitcast i8* [[CALL]] to <8 x float>* |
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| 18 | // CHECK-NEXT: store <8 x float>* [[ZERO]], <8 x float>** [[P:%.*]], align 8 |
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| 19 | // CHECK-NEXT: [[ONE:%.*]] = load <8 x float>*, <8 x float>** [[P]], align 8 |
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| 20 | // CHECK-NEXT: [[TWO:%.*]] = load volatile <8 x float>, <8 x float>* [[ONE]], align 16 |
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| 21 | // CHECK-NEXT: [[THREE:%.*]] = load <8 x float>*, <8 x float>** [[P]], align 8 |
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| 22 | // CHECK-NEXT: store volatile <8 x float> [[TWO]], <8 x float>* [[THREE]], align 16 |
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| 23 | // CHECK-NEXT: [[FOUR:%.*]] = load <8 x float>*, <8 x float>** [[P]], align 8 |
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| 24 | // CHECK-NEXT: [[FIVE:%.*]] = load volatile <8 x float>, <8 x float>* [[FOUR]], align 16 |
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| 25 | // CHECK-NEXT: store <8 x float> [[FIVE]], <8 x float>* [[R]], align 32 |
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| 26 | // CHECK-NEXT: [[SIX:%.*]] = load <8 x float>, <8 x float>* [[R]], align 32 |
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| 27 | // CHECK-NEXT: [[VECEXT:%.*]] = extractelement <8 x float> [[SIX]], i32 0 |
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| 28 | // CHECK-NEXT: ret float [[VECEXT]] |
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| 29 | |
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| 30 | typedef float AVX2Float_Explicitly_aligned __attribute__((__vector_size__(32))) __attribute__((aligned (32))); |
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| 31 | |
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| 32 | typedef AVX2Float_Explicitly_aligned AVX2Float_indirect; |
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| 33 | |
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| 34 | typedef AVX2Float_indirect AVX2Float_use_existing_align; |
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| 35 | |
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| 36 | volatile float TestAlign2(void) |
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| 37 | { |
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| 38 | volatile AVX2Float_use_existing_align *p = new AVX2Float_use_existing_align; |
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| 39 | *p = *p; |
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| 40 | AVX2Float_use_existing_align r = *p; |
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| 41 | return r[0]; |
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| 42 | } |
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| 43 | |
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| 44 | // CHECK: [[R:%.*]] = alloca <8 x float>, align 32 |
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| 45 | // CHECK-NEXT: [[CALL:%.*]] = call i8* @_Znwm(i64 32) |
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| 46 | // CHECK-NEXT: [[ZERO:%.*]] = bitcast i8* [[CALL]] to <8 x float>* |
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| 47 | // CHECK-NEXT: store <8 x float>* [[ZERO]], <8 x float>** [[P:%.*]], align 8 |
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| 48 | // CHECK-NEXT: [[ONE:%.*]] = load <8 x float>*, <8 x float>** [[P]], align 8 |
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| 49 | // CHECK-NEXT: [[TWO:%.*]] = load volatile <8 x float>, <8 x float>* [[ONE]], align 32 |
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| 50 | // CHECK-NEXT: [[THREE:%.*]] = load <8 x float>*, <8 x float>** [[P]], align 8 |
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| 51 | // CHECK-NEXT: store volatile <8 x float> [[TWO]], <8 x float>* [[THREE]], align 32 |
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| 52 | // CHECK-NEXT: [[FOUR:%.*]] = load <8 x float>*, <8 x float>** [[P]], align 8 |
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| 53 | // CHECK-NEXT: [[FIVE:%.*]] = load volatile <8 x float>, <8 x float>* [[FOUR]], align 32 |
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| 54 | // CHECK-NEXT: store <8 x float> [[FIVE]], <8 x float>* [[R]], align 32 |
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| 55 | // CHECK-NEXT: [[SIX:%.*]] = load <8 x float>, <8 x float>* [[R]], align 32 |
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| 56 | // CHECK-NEXT: [[VECEXT:%.*]] = extractelement <8 x float> [[SIX]], i32 0 |
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| 57 | // CHECK-NEXT: ret float [[VECEXT]] |
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| 58 | |
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