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gcc: arc: add patch to fix tst_movb pattern

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Fixes building of quagga [1]:

------------------------------>8---------------------------
839:1: error: unrecognizable insn:
 }
 ^
(insn 183 24 26 4 (set (reg:CC_ZN 61 cc)
        (and:SI (reg:SI 0 r0 [orig:192 _12->id.s_addr ] [192])
            (const_int -256 [0xffffffffffffff00]))) ospf_ri.c:790 -1
     (nil))
ospf_ri.c:839:1: internal compiler error: in extract_insn, at recog.c:2287
------------------------------>8---------------------------

[1] http://autobuild.buildroot.net/results/3c1/3c12c4609d4a77ab8ccd3ea94840884d70520efai

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Alexey Brodkin 2017-05-24 18:39:19 +03:00 committed by Thomas Petazzoni
parent 0ade154f23
commit a71fb422ba
1 changed files with 55 additions and 0 deletions
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55
package/gcc/arc-2017.03/0001-ARC-Fix-tst_movb-pattern.patch Normal file
View file

@ -0,0 +1,55 @@
From 08235ef444fd32d311fc9edb65895133820462e3 Mon Sep 17 00:00:00 2001
From: claziss <claziss@synopsys.com>
Date: Wed, 24 May 2017 12:53:43 +0200
Subject: [PATCH] [ARC] Fix tst_movb pattern.
The tst_movb pattern is missing guarding when spitting.
gcc/
2017-05-24 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc.md (tst_movb): Add guard when splitting.
testsuite/
2017-05-24 Claudiu Zissulescu <claziss@synopsys.com>
* gcc.target/arc/pr9001195952.c: New test.
---
gcc/config/arc/arc.md | 2 +-
gcc/testsuite/gcc.target/arc/pr9001195952.c | 11 +++++++++++
2 files changed, 12 insertions(+), 1 deletion(-)
create mode 100755 gcc/testsuite/gcc.target/arc/pr9001195952.c
diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md
index e78abaaafc42..d5510aeb0600 100644
--- a/gcc/config/arc/arc.md
+++ b/gcc/config/arc/arc.md
@@ -863,7 +863,7 @@ archs4xd, archs4xd_slow"
(clobber (match_scratch:SI 3 "=X,X,X,X,X,X,Rrq,Rrq,c"))]
"TARGET_NPS_BITOPS"
"movb.f.cl %3,%1,%p2,%p2,%s2"
- "reload_completed
+ "TARGET_NPS_BITOPS && reload_completed
&& (extract_constrain_insn_cached (insn), (which_alternative & ~1) != 6)"
[(set (match_dup 0) (match_dup 4))])
diff --git a/gcc/testsuite/gcc.target/arc/pr9001195952.c b/gcc/testsuite/gcc.target/arc/pr9001195952.c
new file mode 100755
index 000000000000..252438d8d78b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arc/pr9001195952.c
@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-skip-if "" { ! { clmcpu } } } */
+/* { dg-options "-mcpu=archs -Os -w -fpic" } */
+
+/* tst_movb split pattern is wrong for anything else than NPS
+ chip. */
+__bswap_32___bsx() {
+ int a = __builtin_bswap32(__bswap_32___bsx);
+ if (a & 1048575)
+ zlog_warn();
+}
--
2.7.4