* [PATCH] x86: Add a testcase for PR target/31799
@ 2020-11-17 14:04 H.J. Lu
0 siblings, 0 replies; only message in thread
From: H.J. Lu @ 2020-11-17 14:04 UTC (permalink / raw)
To: gcc-patches
Add a testcase for PR target/31799 which was fixed by
commit 4f0473fe89e68bf7c09542ee5c3684da25a5b435
Author: Uros Bizjak <ubizjak@gmail.com>
Date: Fri May 12 21:04:05 2017 +0200
compare-elim.c (try_eliminate_compare): Canonicalize operation with embedded compare to [(set (reg:CCM) (compare:CCM...
* compare-elim.c (try_eliminate_compare): Canonicalize
operation with embedded compare to
[(set (reg:CCM) (compare:CCM (operation) (immediate)))
(set (reg) (operation)].
* config/i386/i386.c (TARGET_FLAGS_REGNUM): New define.
in GCC 8.
PR target/31799
* gcc.target/i386/pr31799.c: New test.
---
gcc/testsuite/gcc.target/i386/pr31799.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
create mode 100644 gcc/testsuite/gcc.target/i386/pr31799.c
diff --git a/gcc/testsuite/gcc.target/i386/pr31799.c b/gcc/testsuite/gcc.target/i386/pr31799.c
new file mode 100644
index 00000000000..c72c4eab986
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr31799.c
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+void
+foo (int x, int *y, int *z)
+{
+ *z = ++x;
+ if (x != 0)
+ *y = 1;
+}
+
+/* { dg-final { scan-assembler-not "test" } } */
--
2.28.0
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