1 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s 2 3 // Validate that volatile _Complex loads and stores are generated 4 // properly, including their alignment (even when overaligned). 5 // 6 // This test assumes that floats are 32-bit aligned and doubles are 7 // 64-bit aligned, and uses x86-64 as a target that should have this 8 // property. 9 10 volatile _Complex float cf; 11 volatile _Complex double cd; 12 volatile _Complex float cf32 __attribute__((aligned(32))); 13 volatile _Complex double cd32 __attribute__((aligned(32))); 14 15 // CHECK-LABEL: define void @test_cf() 16 void test_cf() { 17 // CHECK: load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 0), align 4 18 // CHECK-NEXT: load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 1), align 4 19 (void)(cf); 20 // CHECK-NEXT: [[R:%.*]] = load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 0), align 4 21 // CHECK-NEXT: [[I:%.*]] = load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 1), align 4 22 // CHECK-NEXT: store volatile float [[R]], float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 0), align 4 23 // CHECK-NEXT: store volatile float [[I]], float* getelementptr inbounds ({ float, float }, { float, float }* @cf, i32 0, i32 1), align 4 24 (void)(cf=cf); 25 // CHECK-NEXT: ret void 26 } 27 28 // CHECK-LABEL: define void @test_cd() 29 void test_cd() { 30 // CHECK: load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 0), align 8 31 // CHECK-NEXT: load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 1), align 8 32 (void)(cd); 33 // CHECK-NEXT: [[R:%.*]] = load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 0), align 8 34 // CHECK-NEXT: [[I:%.*]] = load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 1), align 8 35 // CHECK-NEXT: store volatile double [[R]], double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 0), align 8 36 // CHECK-NEXT: store volatile double [[I]], double* getelementptr inbounds ({ double, double }, { double, double }* @cd, i32 0, i32 1), align 8 37 (void)(cd=cd); 38 // CHECK-NEXT: ret void 39 } 40 41 // CHECK-LABEL: define void @test_cf32() 42 void test_cf32() { 43 // CHECK: load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 0), align 32 44 // CHECK-NEXT: load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 1), align 4 45 (void)(cf32); 46 // CHECK-NEXT: [[R:%.*]] = load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 0), align 32 47 // CHECK-NEXT: [[I:%.*]] = load volatile float, float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 1), align 4 48 // CHECK-NEXT: store volatile float [[R]], float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 0), align 32 49 // CHECK-NEXT: store volatile float [[I]], float* getelementptr inbounds ({ float, float }, { float, float }* @cf32, i32 0, i32 1), align 4 50 (void)(cf32=cf32); 51 // CHECK-NEXT: ret void 52 } 53 54 // CHECK-LABEL: define void @test_cd32() 55 void test_cd32() { 56 // CHECK: load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 0), align 32 57 // CHECK-NEXT: load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 1), align 8 58 (void)(cd32); 59 // CHECK-NEXT: [[R:%.*]] = load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 0), align 32 60 // CHECK-NEXT: [[I:%.*]] = load volatile double, double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 1), align 8 61 // CHECK-NEXT: store volatile double [[R]], double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 0), align 32 62 // CHECK-NEXT: store volatile double [[I]], double* getelementptr inbounds ({ double, double }, { double, double }* @cd32, i32 0, i32 1), align 8 63 (void)(cd32=cd32); 64 // CHECK-NEXT: ret void 65 } 66
