39 lines · c
1/// This test checks that the warning includes the location in the C source2/// file that contains the inline asm. Although this warning is emitted in llvm3/// it cannot be tested from IR as it does not have that location information at4/// that stage.5 6// REQUIRES: powerpc-registered-target7 8// RUN: %clang --target=powerpc-unknown-unknown -mcpu=pwr7 \9// RUN: -c %s -o /dev/null 2>&1 | FileCheck %s10// RUN: %clang --target=powerpc64-unknown-unknown -mcpu=pwr7 \11// RUN: -c %s -o /dev/null 2>&1 | FileCheck %s12 13void test_r1_clobber() {14 __asm__("nop":::"r1");15}16 17// CHECK: ppc-inline-asm-clobber-warning.c:14:11: warning: inline asm clobber list contains reserved registers: R1 [-Winline-asm]18// CHECK-NEXT: __asm__("nop":::"r1");19// CHECK-NEXT: ^20// CHECK-NEXT: ppc-inline-asm-clobber-warning.c:14:11: note: Reserved registers on the clobber list may not be preserved across the asm statement, and clobbering them may lead to undefined behaviour.21 22void test_1_clobber() {23 __asm__("nop":::"1");24}25 26// CHECK: ppc-inline-asm-clobber-warning.c:23:11: warning: inline asm clobber list contains reserved registers: R1 [-Winline-asm]27// CHECK-NEXT: __asm__("nop":::"1");28// CHECK-NEXT: ^29// CHECK-NEXT: ppc-inline-asm-clobber-warning.c:23:11: note: Reserved registers on the clobber list may not be preserved across the asm statement, and clobbering them may lead to undefined behaviour.30 31void test_sp_clobber() {32 __asm__("nop":::"sp");33}34 35// CHECK: ppc-inline-asm-clobber-warning.c:32:11: warning: inline asm clobber list contains reserved registers: R1 [-Winline-asm]36// CHECK-NEXT: __asm__("nop":::"sp");37// CHECK-NEXT: ^38// CHECK-NEXT: ppc-inline-asm-clobber-warning.c:32:11: note: Reserved registers on the clobber list may not be preserved across the asm statement, and clobbering them may lead to undefined behaviour.39