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authorYiran Wang <yiran@google.com>2015-06-23 22:33:17 (GMT)
committerYiran Wang <yiran@google.com>2015-06-29 17:56:28 (GMT)
commit1d9fec7937f45dde5e04cac966a2d9a12f2fc15a (patch)
tree3fbcd18a379a05fd6d43491a107e1f36bc61b185 /gcc-4.9/gcc/postreload.c
parentf378ebf14df0952eae870c9865bab8326aa8f137 (diff)
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Synchronize with google/gcc-4_9 to r224707 (from r214835)
Change-Id: I3d6f06fc613c8f8b6a82143dc44b7338483aac5d
Diffstat (limited to 'gcc-4.9/gcc/postreload.c')
-rw-r--r--gcc-4.9/gcc/postreload.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc-4.9/gcc/postreload.c b/gcc-4.9/gcc/postreload.c
index 9bfffe5..797668b 100644
--- a/gcc-4.9/gcc/postreload.c
+++ b/gcc-4.9/gcc/postreload.c
@@ -493,7 +493,13 @@ reload_cse_simplify_operands (rtx insn, rtx testreg)
continue;
for (l = v->locs; l; l = l->next)
- if (REG_P (l->loc))
+ if (REG_P (l->loc)
+ /* If postreload cse replace an expr in call insn with
+ frame pointer reg, we will end up getting call (...bp...),
+ this is wrong for frame pointer shrinkwrapping. */
+ && !(frame_pointer_partially_needed
+ && CALL_P (insn)
+ && REGNO (l->loc) == HARD_FRAME_POINTER_REGNUM))
SET_HARD_REG_BIT (equiv_regs[i], REGNO (l->loc));
}