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[i386] : Fix PR61225, -fshrink-wrap interference with RMW peepholes

Message ID CAFULd4b6wqR=3pGSM6nfheZYvku8KoM_Mx-5maGLbTb-O8e34w@mail.gmail.com
State New
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Commit Message

Uros Bizjak Feb. 14, 2017, 5:48 p.m. UTC 
Hello!

It turned out that with gcc.target/i386/pr49095.c, the default
-fshrink-wrap setting interferes with short testcases that test
various read-modify-write peephole patterns.

Use -fno-shrink-wrap to keep correct RTL sequences that test the transformation.

2017-02-14  Uros Bizjak  <ubizjak@gmail.com>

    PR middle-end/61225
    * gcc.target/i386/pr49095.c: Add -fno-shrink-wrap to dg-options.
    Use dg-additional-options for ia32 target.  Remove XFAIL.

Tested on x86_64-linux-gnu {,-m32}.

Committed to mainline SVN, will be backported to gcc-6 branch.

Uros.
diff mbox

Patch

Index: gcc.target/i386/pr49095.c
===================================================================
--- gcc.target/i386/pr49095.c	(revision 245433)
+++ gcc.target/i386/pr49095.c	(working copy)
@@ -1,7 +1,7 @@ 
 /* PR rtl-optimization/49095 */
 /* { dg-do compile } */
-/* { dg-options "-Os" } */
-/* { dg-options "-Os -mregparm=2" { target ia32 } } */
+/* { dg-options "-Os -fno-shrink-wrap" } */
+/* { dg-additional-options "-mregparm=2" { target ia32 } } */
 
 void foo (void *);
 
@@ -70,5 +70,4 @@ 
 G (int)
 G (long)
 
-/* See PR61225 for the XFAIL.  */
-/* { dg-final { scan-assembler-not "test\[lq\]" { xfail { ia32 } } } } */
+/* { dg-final { scan-assembler-not "test\[lq\]" } } */