| /* { dg-do compile { target c99_runtime } } */ |
| /* { dg-options "-O0 -fipa-icf -fdump-ipa-icf-optimized" } */ |
| |
| #include <complex.h> |
| |
| typedef _Complex float COMPLEX_FLOAT; |
| |
| __attribute__ ((noinline)) |
| static float real_part(COMPLEX_FLOAT a) |
| { |
| return *(float*)(&a); |
| } |
| |
| __attribute__ ((noinline)) |
| static float real_part_2(COMPLEX_FLOAT a) |
| { |
| return ((float*)(&a))[0]; |
| } |
| |
| int main() |
| { |
| COMPLEX_FLOAT f = 1.0f + _Complex_I; |
| |
| float r1 = real_part(f); |
| float r2 = real_part_2(f); |
| |
| return r1 - r2; |
| } |
| |
| /* { dg-final { scan-ipa-dump "Semantic equality hit:real_part/\[0-9+\]+->real_part_2/\[0-9+\]+" "icf" } } */ |
| /* { dg-final { scan-ipa-dump "Equal symbols: 1" "icf" } } */ |
