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-rw-r--r--import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-4.9/0059-gcc-PR-rtl-optimization-63348.patch59
1 files changed, 59 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-4.9/0059-gcc-PR-rtl-optimization-63348.patch b/import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-4.9/0059-gcc-PR-rtl-optimization-63348.patch
new file mode 100644
index 000000000..de827cbda
--- /dev/null
+++ b/import-layers/yocto-poky/meta/recipes-devtools/gcc/gcc-4.9/0059-gcc-PR-rtl-optimization-63348.patch
@@ -0,0 +1,59 @@
+From 6eae3e637fcc22d21b51d44d61e3a9cb4825e776 Mon Sep 17 00:00:00 2001
+From: Jackie Huang <jackie.huang@windriver.com>
+Date: Thu, 30 Oct 2014 20:37:14 -0700
+Subject: [PATCH]PR rtl-optimization/63348
+
+PR rtl-optimization/63348
+* emit-rtl.c (try_split): Do not emit extra barrier.
+
+Note: this patch is to fix the side effect introduced by r212171 which was reported at:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63348
+
+git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215613 138bc75d-0d04-0410-961f-82ee72b054a4
+
+Upstream-Status: Backport [https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=215613]
+Signed-off-by: Baoshan Pang <baoshan.pang@windriver.com>
+Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
+---
+ gcc/emit-rtl.c | 11 -----------
+ 1 files changed, 0 insertions(+), 11 deletions(-)
+
+diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
+index 4736f8d..ae69dbd 100644
+--- a/gcc/emit-rtl.c
++++ b/gcc/emit-rtl.c
+@@ -3422,7 +3422,6 @@ try_split (rtx pat, rtx trial, int last)
+ {
+ rtx before = PREV_INSN (trial);
+ rtx after = NEXT_INSN (trial);
+- int has_barrier = 0;
+ rtx note, seq, tem;
+ int probability;
+ rtx insn_last, insn;
+@@ -3441,14 +3440,6 @@ try_split (rtx pat, rtx trial, int last)
+
+ split_branch_probability = -1;
+
+- /* If we are splitting a JUMP_INSN, it might be followed by a BARRIER.
+- We may need to handle this specially. */
+- if (after && BARRIER_P (after))
+- {
+- has_barrier = 1;
+- after = NEXT_INSN (after);
+- }
+-
+ if (!seq)
+ return trial;
+
+@@ -3594,8 +3585,6 @@ try_split (rtx pat, rtx trial, int last)
+ tem = emit_insn_after_setloc (seq, trial, INSN_LOCATION (trial));
+
+ delete_insn (trial);
+- if (has_barrier)
+- emit_barrier_after (tem);
+
+ /* Recursively call try_split for each new insn created; by the
+ time control returns here that insn will be fully split, so
+--
+1.7.1
+
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