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From 9aeec4c33a6e405da2d97c3c45efe2165b44cf97 Mon Sep 17 00:00:00 2001
From: uros <uros@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 24 May 2011 18:41:31 +0000
Subject: [PATCH] PR target/49133
* config/i386/sse.md (sse2_loadhpd): Remove shufpd alternative.
testsuite/ChangeLog:
PR target/49133
* g++.dg/other/pr49133.C: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@174131 138bc75d-0d04-0410-961f-82ee72b054a4
index c9866f0..7e18678 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -4950,24 +4950,22 @@
;; Avoid combining registers from different units in a single alternative,
;; see comment above inline_secondary_memory_needed function in i386.c
(define_insn "sse2_loadhpd"
- [(set (match_operand:V2DF 0 "nonimmediate_operand" "=x,x,x,o,o,o")
+ [(set (match_operand:V2DF 0 "nonimmediate_operand" "=x,x,o,o,o")
(vec_concat:V2DF
(vec_select:DF
- (match_operand:V2DF 1 "nonimmediate_operand" " 0,0,x,0,0,0")
+ (match_operand:V2DF 1 "nonimmediate_operand" " 0,0,0,0,0")
(parallel [(const_int 0)]))
- (match_operand:DF 2 "nonimmediate_operand" " m,x,0,x,*f,r")))]
+ (match_operand:DF 2 "nonimmediate_operand" " m,x,x,*f,r")))]
"TARGET_SSE2 && !(MEM_P (operands[1]) && MEM_P (operands[2]))"
"@
movhpd\t{%2, %0|%0, %2}
unpcklpd\t{%2, %0|%0, %2}
- shufpd\t{$1, %1, %0|%0, %1, 1}
#
#
#"
- [(set_attr "type" "ssemov,sselog,sselog,ssemov,fmov,imov")
- (set_attr "prefix_data16" "1,*,*,*,*,*")
- (set_attr "length_immediate" "*,*,1,*,*,*")
- (set_attr "mode" "V1DF,V2DF,V2DF,DF,DF,DF")])
+ [(set_attr "type" "ssemov,sselog,ssemov,fmov,imov")
+ (set_attr "prefix_data16" "1,*,*,*,*")
+ (set_attr "mode" "V1DF,V2DF,DF,DF,DF")])
(define_split
[(set (match_operand:V2DF 0 "memory_operand" "")
new file mode 100644
index 0000000..a59687f
--- /dev/null
+++ b/gcc/testsuite/g++.dg/other/pr49133.C
@@ -0,0 +1,36 @@
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-options "-O2 -msse2" } */
+/* { dg-require-effective-target sse2_runtime } */
+
+#include <xmmintrin.h>
+
+extern "C" void abort ();
+
+typedef double double_a __attribute__((__may_alias__));
+
+struct V
+{
+ __m128d data;
+};
+
+int
+main()
+{
+ V a;
+ __m128d b;
+
+ b = _mm_set_pd (1., 0.);
+ a.data = _mm_set_pd (1., 0.);
+ a.data = _mm_add_pd (a.data,
+ _mm_and_pd (_mm_cmpeq_pd (a.data, _mm_set1_pd (0.)),
+ _mm_set1_pd (2.)));
+ reinterpret_cast<double_a *>(&a.data)[1] += 1.;
+ b = _mm_add_pd (b, _mm_and_pd (_mm_cmpeq_pd (b, _mm_set1_pd (0.)),
+ _mm_set1_pd (1.)));
+ b = _mm_add_pd (b, _mm_and_pd (_mm_cmpeq_pd (b, _mm_set1_pd (1.)),
+ _mm_set1_pd (1.)));
+ if (_mm_movemask_pd (_mm_cmpeq_pd (a.data, b)) != 0x3)
+ abort();
+
+ return 0;
+}
--
1.7.0.4
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