gcc/testsuite/gcc.target/i386/pr53623.c

   1 /* { dg-do compile { target {! ia32 } } } */
   2 /* { dg-options "-O2 -fdump-rtl-ree" } */
   3
   4
   5 #include <stdint.h>
   6
   7 typedef int (*inst_t)(int64_t rdi, int64_t rsi, int64_t rdx);
   8
   9 int16_t code[256];
  10 inst_t dispatch[256];
  11
  12 void an_inst(int64_t rdi, int64_t rsi, int64_t rdx) {
  13   rdx = code[rdx];
  14   uint8_t inst = (uint8_t) rdx;
  15   rdx >>= 8;
  16   dispatch[inst](rdi, rsi, rdx);
  17 }
  18
  19 int main(void) {
  20   return 0;
  21 }
  22
  23 /* { dg-final { scan-rtl-dump "copy needed" "ree" } } */
  24