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* [gcc r12-2855] Fix gcc.dg/lto/pr48622_0.c testcase
@ 2021-08-11 14:30 Richard Biener
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From: Richard Biener @ 2021-08-11 14:30 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:cba64d855df581cc26fa487162027138aef4dbe5
commit r12-2855-gcba64d855df581cc26fa487162027138aef4dbe5
Author: Richard Biener <rguenther@suse.de>
Date: Wed Aug 11 16:28:33 2021 +0200
Fix gcc.dg/lto/pr48622_0.c testcase
This fixes the testcase to not rely on the reference to
ashift_qi_1 being optimized out by RTL optimization via
help of the initregs pass that changes comparisons of
uninitialized data with a comparison that is always false.
2021-08-11 Richard Biener <rguenther@suse.de>
* gcc.dg/lto/pr48622_1.c: Provide non-LTO definition
of ashift_qi_1.
Diff:
---
gcc/testsuite/gcc.dg/lto/pr48622_1.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/gcc/testsuite/gcc.dg/lto/pr48622_1.c b/gcc/testsuite/gcc.dg/lto/pr48622_1.c
new file mode 100644
index 00000000000..4d05bae2114
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/lto/pr48622_1.c
@@ -0,0 +1,6 @@
+/* { dg-options "-fno-lto" } */
+
+typedef unsigned int u8 __attribute__ ((mode (QI)));
+u8 ashift_qi_1 (u8)
+{
+}
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