On Mon, Nov 07, 2022 at 12:42:38PM +0100, Aldy Hernandez via Gcc-patches wrote:
> * gcc.dg/tree-ssa/pr107541.c: New test.
The test fails when long is 32-bit rather than 64-bit (say x86_64 with
RUNTESTFLAGS='--target_board=unix\{-m32,-m64\} tree-ssa.exp=pr107541.c'
).
I've tweaked it to use long long so it passes even on the 32-bit
targets, and added an early out for weirdo targets because I think
the test assumes the usual 1/2/4/8 bytes sizes for char/short/int/long long.
Tested on x86_64-linux, ok for trunk?
2022-11-08 Jakub Jelinek <ja...@redhat.com>
PR tree-optimization/107541
* gcc.dg/tree-ssa/pr107541.c (c): Use long long type rather than long.
(main): Punt if sizeof short isn't 2, or int 4, or long long 8.
--- gcc/testsuite/gcc.dg/tree-ssa/pr107541.c.jj 2022-11-07 15:12:24.519022064
+0100
+++ gcc/testsuite/gcc.dg/tree-ssa/pr107541.c 2022-11-08 12:45:12.926718243
+0100
@@ -3,9 +3,11 @@
unsigned char a = 1;
char b, e;
-long c;
+long long c;
short d;
int main() {
+ if (sizeof (short) != 2 || sizeof (int) != 4 || sizeof (long long) != 8)
+ return 0;
a = ~(1 && a);
c = ~((~a / 8 | -2) & 11007578330939886389LLU);
e = -c;
Jakub
