xref: /aosp_15_r20/external/clang/test/CodeGen/inline-asm-matching-constraint.c (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li // RUN: %clang_cc1 -emit-llvm %s -o - -triple powerpc64le-linux-gnu | FileCheck %s
2*67e74705SXin Li // Sadly since this requires a register constraint to trigger we have to set
3*67e74705SXin Li // a target here.
a(void)4*67e74705SXin Li void a(void) {
5*67e74705SXin Li   register unsigned long __sc_0 __asm__("r0");
6*67e74705SXin Li   __asm__ __volatile__("mfcr %0" : "=&r"(__sc_0) : "0"(__sc_0));
7*67e74705SXin Li }
8*67e74705SXin Li 
9*67e74705SXin Li // Check that we can generate code for this correctly. The matching input
10*67e74705SXin Li // constraint should not have an early clobber on it.
11*67e74705SXin Li // CHECK: call i64 asm sideeffect "mfcr $0", "=&{r0},{r0}"
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