67 lines · c
1// RUN: %clang_cc1 -triple=x86_64 -std=c2y -Wall -pedantic -Wno-unused -Wpre-c2y-compat -verify=pre-c2y %s -emit-llvm -o - | FileCheck %s2// RUN: %clang_cc1 -triple=x86_64 -std=c23 -Wall -pedantic -Wno-unused %s -verify -emit-llvm -o - | FileCheck %s3 4/* WG14 N3259: Yes5 * Support ++ and -- on complex values6 */7 8// CHECK-LABEL: define {{.*}} void @test()9void test() {10 // CHECK: %[[F:.+]] = alloca { float, float }11 // CHECK: store float 112 // CHECK: store float 013 _Complex float f = __builtin_complex(1.0f, 0.0f);14 15 // CHECK: %[[F_REALP1:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 016 // CHECK-NEXT: %[[F_REAL:.+]] = load float, ptr %[[F_REALP1]]17 // CHECK-NEXT: %[[F_IMAGP2:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 118 // CHECK-NEXT: %[[F_IMAG:.+]] = load float, ptr %[[F_IMAGP2]]19 // CHECK-NEXT: %[[INC:.+]] = fadd float %[[F_REAL]], 1.000000e+0020 // CHECK-NEXT: %[[F_REALP3:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 021 // CHECK-NEXT: %[[F_IMAGP4:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 122 // CHECK-NEXT: store float %[[INC]], ptr %[[F_REALP3]]23 // CHECK-NEXT: store float %[[F_IMAG]], ptr %[[F_IMAGP4]]24 f++; /* expected-warning {{'++' on an object of complex type is a C2y extension}}25 pre-c2y-warning {{'++' on an object of complex type is incompatible with C standards before C2y}}26 */27 28 // CHECK: %[[F_REALP5:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 029 // CHECK-NEXT: %[[F_REAL6:.+]] = load float, ptr %[[F_REALP5]]30 // CHECK-NEXT: %[[F_IMAGP7:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 131 // CHECK-NEXT: %[[F_IMAG8:.+]] = load float, ptr %[[F_IMAGP7]]32 // CHECK-NEXT: %[[INC9:.+]] = fadd float %[[F_REAL6]], 1.000000e+0033 // CHECK-NEXT: %[[F_REALP10:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 034 // CHECK-NEXT: %[[F_IMAGP11:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 135 // CHECK-NEXT: store float %[[INC9]], ptr %[[F_REALP10]]36 // CHECK-NEXT: store float %[[F_IMAG8]], ptr %[[F_IMAGP11]]37 ++f; /* expected-warning {{'++' on an object of complex type is a C2y extension}}38 pre-c2y-warning {{'++' on an object of complex type is incompatible with C standards before C2y}}39 */40 41 // CHECK: %[[F_REALP12:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 042 // CHECK-NEXT: %[[F_REAL13:.+]] = load float, ptr %[[F_REALP12]]43 // CHECK-NEXT: %[[F_IMAGP14:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 144 // CHECK-NEXT: %[[F_IMAG15:.+]] = load float, ptr %[[F_IMAGP14]]45 // CHECK-NEXT: %[[DEC:.+]] = fadd float %[[F_REAL13]], -1.000000e+0046 // CHECK-NEXT: %[[F_REALP16:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 047 // CHECK-NEXT: %[[F_IMAGP17:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 148 // CHECK-NEXT: store float %[[DEC]], ptr %[[F_REALP16]]49 // CHECK-NEXT: store float %[[F_IMAG15]], ptr %[[F_IMAGP17]]50 f--; /* expected-warning {{'--' on an object of complex type is a C2y extension}}51 pre-c2y-warning {{'--' on an object of complex type is incompatible with C standards before C2y}}52 */53 54 // CHECK: %[[F_REALP18:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 055 // CHECK-NEXT: %[[F_REAL19:.+]] = load float, ptr %[[F_REALP18]]56 // CHECK-NEXT: %[[F_IMAGP20:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 157 // CHECK-NEXT: %[[F_IMAG21:.+]] = load float, ptr %[[F_IMAGP20]]58 // CHECK-NEXT: %[[DEC22:.+]] = fadd float %[[F_REAL19]], -1.000000e+0059 // CHECK-NEXT: %[[F_REALP23:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 060 // CHECK-NEXT: %[[F_IMAGP24:.+]] = getelementptr inbounds nuw { float, float }, ptr %[[F]], i32 0, i32 161 // CHECK-NEXT: store float %[[DEC22]], ptr %[[F_REALP23]]62 // CHECK-NEXT: store float %[[F_IMAG21]], ptr %[[F_IMAGP24]]63 --f; /* expected-warning {{'--' on an object of complex type is a C2y extension}}64 pre-c2y-warning {{'--' on an object of complex type is incompatible with C standards before C2y}}65 */66}67