| /// This test checks that the warning includes the location in the C source |
| /// file that contains the inline asm. Instead of saying <inline asm> for both. |
| /// Although this warning is emitted in llvm it cannot be tested from IR as |
| /// it does not have that location information at that stage. |
| |
| // RUN: %clang -target arm-arm-none-eabi -march=armv7-m -c %s -o /dev/null \ |
| // RUN: 2>&1 | FileCheck %s |
| |
| // REQUIRES: arm-registered-target |
| |
| void bar(void) { |
| __asm__ __volatile__("nop" |
| : |
| : |
| : "sp"); |
| } |
| |
| // CHECK: inline-asm-clobber-warning.c:12:24: warning: inline asm clobber list contains reserved registers: SP [-Winline-asm] |
| // CHECK-NEXT: __asm__ __volatile__("nop" |
| // CHECK-NEXT: ^ |
| // CHECK-NEXT: inline-asm-clobber-warning.c:12:24: note: Reserved registers on the clobber list may not be preserved across the asm statement, and clobbering them may lead to undefined behaviour. |