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* [PATCH] PR66669: Fix failure of gcc.dg/loop-8.c on Power
@ 2017-01-23 17:01 Kelvin Nilsen
  2017-01-23 17:08 ` Jeff Law
  2017-06-26 22:13 ` [PATCH] PR66669: Fix failure of gcc.dg/loop-8.c on Power (Backport) Kelvin Nilsen
  0 siblings, 2 replies; 3+ messages in thread
From: Kelvin Nilsen @ 2017-01-23 17:01 UTC (permalink / raw)
  To: gcc-patches; +Cc: law


The test gcc.dg/loop-8.c makes assumptions that are not valid on Power
architecture (and on certain other architectures for which this issue
has already been addressed).  The test case assumes that a single
loop-invariant statement will be moved outside the loop.  On Power, a
constant is copy-propagated within the loop, and the subsequent
loop-invariant code motion moves two loop-invariant statements out of
the loop.

This patch simply disables this test case on Power architecture.


gcc/testsuite/ChangeLog:

2017-01-23  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/66669
	* gcc.dg/loop-8.c: Modify dg-skip-if directive to exclude this
	test on powerpc targets.

Index: gcc/testsuite/gcc.dg/loop-8.c
===================================================================
--- gcc/testsuite/gcc.dg/loop-8.c	(revision 244730)
+++ gcc/testsuite/gcc.dg/loop-8.c	(working copy)
@@ -1,6 +1,6 @@
 /* { dg-do compile } */
 /* { dg-options "-O1 -fdump-rtl-loop2_invariant" } */
-/* { dg-skip-if "unexpected IV" { "hppa*-*-* mips*-*-* visium-*-*" } { "*" } { "" } } */
+/* { dg-skip-if "unexpected IV" { "hppa*-*-* mips*-*-* visium-*-* powerpc*-*-*" } { "*" } { "" } } */
 
 void
 f (int *a, int *b)

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2017-01-23 17:01 [PATCH] PR66669: Fix failure of gcc.dg/loop-8.c on Power Kelvin Nilsen
2017-01-23 17:08 ` Jeff Law
2017-06-26 22:13 ` [PATCH] PR66669: Fix failure of gcc.dg/loop-8.c on Power (Backport) Kelvin Nilsen

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