13 lines · c
1// RUN: %clang_cc1 -emit-llvm %s -o - -O | not grep alloca2// PR20943 4int sad16_sse2(void *v, unsigned char *blk2, unsigned char *blk1,5 int stride, int h) {6 int ret;7 asm volatile( "%0 %1 %2 %3"8 : "+r" (h), "+r" (blk1), "+r" (blk2)9 : "r" ((long)stride));10 asm volatile("set %0 %1" : "=r"(ret) : "r"(blk1));11 return ret;12}13