// 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 // 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 typedef float AVX2Float __attribute__((__vector_size__(32))); #if __cplusplus < 202002L volatile #endif float TestAlign(void) { volatile AVX2Float *p = new AVX2Float; *p = *p; AVX2Float r = *p; return r[0]; } // CHECK: [[R:%.*]] = alloca <8 x float>, align 32 // PRE17-NEXT: [[CALL:%.*]] = call noalias noundef nonnull ptr @_Znwm(i64 noundef 32) // CXX17-NEXT: [[CALL:%.*]] = call noalias noundef nonnull align 32 ptr @_ZnwmSt11align_val_t(i64 noundef 32, i64 noundef 32) // CHECK-NEXT: store ptr [[CALL]], ptr [[P:%.*]], align 8 // CHECK-NEXT: [[ONE:%.*]] = load ptr, ptr [[P]], align 8 // CHECK-NEXT: [[TWO:%.*]] = load volatile <8 x float>, ptr [[ONE]], align 16 // CHECK-NEXT: [[THREE:%.*]] = load ptr, ptr [[P]], align 8 // CHECK-NEXT: store volatile <8 x float> [[TWO]], ptr [[THREE]], align 16 // CHECK-NEXT: [[FOUR:%.*]] = load ptr, ptr [[P]], align 8 // CHECK-NEXT: [[FIVE:%.*]] = load volatile <8 x float>, ptr [[FOUR]], align 16 // CHECK-NEXT: store <8 x float> [[FIVE]], ptr [[R]], align 32 // CHECK-NEXT: [[SIX:%.*]] = load <8 x float>, ptr [[R]], align 32 // CHECK-NEXT: [[VECEXT:%.*]] = extractelement <8 x float> [[SIX]], i32 0 // CHECK-NEXT: ret float [[VECEXT]] typedef float AVX2Float_Explicitly_aligned __attribute__((__vector_size__(32))) __attribute__((aligned (32))); typedef AVX2Float_Explicitly_aligned AVX2Float_indirect; typedef AVX2Float_indirect AVX2Float_use_existing_align; #if __cplusplus < 202002L volatile #endif float TestAlign2(void) { volatile AVX2Float_use_existing_align *p = new AVX2Float_use_existing_align; *p = *p; AVX2Float_use_existing_align r = *p; return r[0]; } // CHECK: [[R:%.*]] = alloca <8 x float>, align 32 // PRE17-NEXT: [[CALL:%.*]] = call noalias noundef nonnull ptr @_Znwm(i64 noundef 32) // CXX17-NEXT: [[CALL:%.*]] = call noalias noundef nonnull align 32 ptr @_ZnwmSt11align_val_t(i64 noundef 32, i64 noundef 32) // CHECK-NEXT: store ptr [[CALL]], ptr [[P:%.*]], align 8 // CHECK-NEXT: [[ONE:%.*]] = load ptr, ptr [[P]], align 8 // CHECK-NEXT: [[TWO:%.*]] = load volatile <8 x float>, ptr [[ONE]], align 32 // CHECK-NEXT: [[THREE:%.*]] = load ptr, ptr [[P]], align 8 // CHECK-NEXT: store volatile <8 x float> [[TWO]], ptr [[THREE]], align 32 // CHECK-NEXT: [[FOUR:%.*]] = load ptr, ptr [[P]], align 8 // CHECK-NEXT: [[FIVE:%.*]] = load volatile <8 x float>, ptr [[FOUR]], align 32 // CHECK-NEXT: store <8 x float> [[FIVE]], ptr [[R]], align 32 // CHECK-NEXT: [[SIX:%.*]] = load <8 x float>, ptr [[R]], align 32 // CHECK-NEXT: [[VECEXT:%.*]] = extractelement <8 x float> [[SIX]], i32 0 // CHECK-NEXT: ret float [[VECEXT]]