| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fstack-clash-protection -mtune=generic -fdump-rtl-expand" } */ |
| /* { dg-require-effective-target supports_stack_clash_protection } */ |
| /* { dg-skip-if "" { *-*-* } { "-fstack-protector*" } { "" } } */ |
| |
| int f1 (char *); |
| |
| int |
| f2 (const int size) |
| { |
| char buffer[size]; |
| return f1 (buffer); |
| } |
| |
| /* So we want to verify that at expand time that we probed the main |
| VLA allocation as well as the residuals. Then we want to verify |
| there are two probes in the final assembly code. */ |
| /* { dg-final { scan-rtl-dump-times "allocation and probing in loop" 1 "expand" } } */ |
| /* { dg-final { scan-rtl-dump-times "allocation and probing residuals" 1 "expand" } } */ |
| /* { dg-final { scan-assembler-times "or\[ql\]" 2 } } */ |
| |
| /* We also want to verify (indirectly) that the residual probe is |
| guarded. We do that by checking the number of conditional |
| branches. There should be 3. One that bypasses the probe loop, one |
| in the probe loop and one that bypasses the residual probe. |
| |
| These will all be equality tests. */ |
| /* { dg-final { scan-assembler-times "(\?:je|jne)" 3 } } */ |
| |
| |
