From: Jakub Jelinek <jakub@redhat.com>
Date: Sat, 8 Mar 2008 07:30:55 +0000 (+0100)
Subject: re PR target/35498 (libgomp/testsuite/libgomp.c/atomic-3.c fails on ppc-linux)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2725b75c3397530b2fdb9fc9e8123eb95c5ae748;p=gcc.git

re PR target/35498 (libgomp/testsuite/libgomp.c/atomic-3.c fails on ppc-linux)

	PR target/35498
	* config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): Shift
	wdst back after sync_compare_and_swapqhi_internal.

From-SVN: r133024
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1ffe9d59b98..39945f51807 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-03-08  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/35498
+	* config/rs6000/rs6000.c (rs6000_expand_compare_and_swapqhi): Shift
+	wdst back after sync_compare_and_swapqhi_internal.
+
 2008-03-08  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/22152
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index a9797998ada..5204a555452 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -13903,6 +13903,9 @@ rs6000_expand_compare_and_swapqhi (rtx dst, rtx mem, rtx oldval, rtx newval)
   emit_insn (gen_sync_compare_and_swapqhi_internal (wdst, mask,
 						    oldval, newval, mem));
 
+  /* Shift the result back.  */
+  emit_insn (gen_lshrsi3 (wdst, wdst, shift));
+
   emit_move_insn (dst, gen_lowpart (mode, wdst));
 }