On Wed, Dec 01, 2021 at 02:01:59PM +0530, Siddhesh Poyarekar wrote:
> PR tree-optimization/103456
> * gcc.dg/ubsan/pr103456.c: New test.
ubsan.exp cycles through torture options, and that includes
-O2 -flto -fno-fat-lto-objects. But with those options
tree dump scans don't work for post-IPA passes, for dg-do
compile tests nothing after IPA is done. So we get an
unresolved testcase:
gcc.dg/ubsan/pr103456.c -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects :
dump file does not exist
UNRESOLVED: gcc.dg/ubsan/pr103456.c -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects scan-tree-dump-not objsz1 "maximum object size 0"
Fixed by adding -ffat-lto-objects so that we perform the post-IPA
passes.
Tested on x86_64-linux, committed to trunk as obvious.
2021-12-03 Jakub Jelinek <ja...@redhat.com>
PR tree-optimization/103456
* gcc.dg/ubsan/pr103456.c: Add -ffat-lto-objects to dg-options.
--- gcc/testsuite/gcc.dg/ubsan/pr103456.c.jj 2021-12-01 10:03:55.404029919
+0100
+++ gcc/testsuite/gcc.dg/ubsan/pr103456.c 2021-12-03 12:06:57.613750230
+0100
@@ -1,6 +1,6 @@
/* PR tree-optimization/103456 */
/* { dg-do compile } */
-/* { dg-options "-fsanitize=undefined -O -fdump-tree-objsz" } */
+/* { dg-options "-fsanitize=undefined -O -fdump-tree-objsz -ffat-lto-objects"
} */
static char *multilib_options = "m64/m32";
Jakub
