| /// This test checks that the warning includes the location in the C source |
| /// file that contains the inline asm. Although this warning is emitted in llvm |
| /// it cannot be tested from IR as it does not have that location information at |
| /// that stage. |
| |
| // REQUIRES: powerpc-registered-target |
| |
| // RUN: %clang --target=powerpc-unknown-unknown -mcpu=pwr7 \ |
| // RUN: -c %s -o /dev/null 2>&1 | FileCheck %s |
| // RUN: %clang --target=powerpc64-unknown-unknown -mcpu=pwr7 \ |
| // RUN: -c %s -o /dev/null 2>&1 | FileCheck %s |
| |
| void test_r1_clobber() { |
| __asm__("nop":::"r1"); |
| } |
| |
| // CHECK: ppc-inline-asm-clobber-warning.c:14:11: warning: inline asm clobber list contains reserved registers: R1 [-Winline-asm] |
| // CHECK-NEXT: __asm__("nop":::"r1"); |
| // CHECK-NEXT: ^ |
| // 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. |
| |
| void test_1_clobber() { |
| __asm__("nop":::"1"); |
| } |
| |
| // CHECK: ppc-inline-asm-clobber-warning.c:23:11: warning: inline asm clobber list contains reserved registers: R1 [-Winline-asm] |
| // CHECK-NEXT: __asm__("nop":::"1"); |
| // CHECK-NEXT: ^ |
| // 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. |
| |
| void test_sp_clobber() { |
| __asm__("nop":::"sp"); |
| } |
| |
| // CHECK: ppc-inline-asm-clobber-warning.c:32:11: warning: inline asm clobber list contains reserved registers: R1 [-Winline-asm] |
| // CHECK-NEXT: __asm__("nop":::"sp"); |
| // CHECK-NEXT: ^ |
| // 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. |
