diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0403-PR-target-49238.patch')
-rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0403-PR-target-49238.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0403-PR-target-49238.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0403-PR-target-49238.patch new file mode 100644 index 0000000000..d43c6357e9 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0403-PR-target-49238.patch | |||
@@ -0,0 +1,53 @@ | |||
1 | From 097c985ab5f847fba2fe4f9e53732b75f2ecf266 Mon Sep 17 00:00:00 2001 | ||
2 | From: kkojima <kkojima@138bc75d-0d04-0410-961f-82ee72b054a4> | ||
3 | Date: Wed, 8 Jun 2011 04:07:25 +0000 | ||
4 | Subject: [PATCH] PR target/49238 | ||
5 | * config/sh/sh.c (expand_cbranchdi4): Use a scratch register if | ||
6 | needed when original operands are used for msw_skip comparison. | ||
7 | * gcc.c-torture/compile/pr49238.c: New. | ||
8 | |||
9 | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174793 138bc75d-0d04-0410-961f-82ee72b054a4 | ||
10 | |||
11 | index 05acb0a..ee80028 100644 | ||
12 | --- a/gcc/config/sh/sh.c | ||
13 | +++ b/gcc/config/sh/sh.c | ||
14 | @@ -2187,6 +2187,13 @@ expand_cbranchdi4 (rtx *operands, enum rtx_code comparison) | ||
15 | { | ||
16 | operands[1] = op1h; | ||
17 | operands[2] = op2h; | ||
18 | + if (reload_completed | ||
19 | + && ! arith_reg_or_0_operand (op2h, SImode) | ||
20 | + && (true_regnum (op1h) || (comparison != EQ && comparison != NE))) | ||
21 | + { | ||
22 | + emit_move_insn (scratch, operands[2]); | ||
23 | + operands[2] = scratch; | ||
24 | + } | ||
25 | } | ||
26 | |||
27 | operands[3] = skip_label = gen_label_rtx (); | ||
28 | new file mode 100644 | ||
29 | index 0000000..fd8443a | ||
30 | --- /dev/null | ||
31 | +++ b/gcc/testsuite/gcc.c-torture/compile/pr49238.c | ||
32 | @@ -0,0 +1,18 @@ | ||
33 | +/* PR target/49238 */ | ||
34 | +extern int bar (void); | ||
35 | + | ||
36 | +void | ||
37 | +foo (unsigned long long a, int b) | ||
38 | +{ | ||
39 | + int i; | ||
40 | + | ||
41 | + if (b) | ||
42 | + for (a = -12; a >= 10; a = bar ()) | ||
43 | + break; | ||
44 | + else | ||
45 | + return; | ||
46 | + | ||
47 | + for (i = 0; i < 10; i += 10) | ||
48 | + if ((i == bar ()) | (bar () >= a)) | ||
49 | + bar (); | ||
50 | +} | ||
51 | -- | ||
52 | 1.7.0.4 | ||
53 | |||