From dd88c7227940f3586ee66e88754006cedf5302bb Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 16 Nov 2012 12:40:39 +0100
Subject: [PATCH] re PR tree-optimization/54073 (SciMark Monte Carlo test
performance has seriously decreased in recent GCC releases)
PR target/54073
* config/i386/i386.md (mov<mode>cc): Use comparison_operator
instead of ordered_comparison_operator resp.
ix86_fp_comparison_operator predicates.
* config/i386/i386.c (ix86_expand_fp_movcc): Reject TImode
or for -m32 DImode comparisons.
From-SVN: r193554
---
gcc/ChangeLog | 9 +++++++++
gcc/config/i386/i386.c | 5 +++++
gcc/config/i386/i386.md | 4 ++--
3 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b0c8ad37079c..ff0ebecd9086 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2012-11-16 Jakub Jelinek <jakub@redhat.com>
+
+ PR target/54073
+ * config/i386/i386.md (mov<mode>cc): Use comparison_operator
+ instead of ordered_comparison_operator resp.
+ ix86_fp_comparison_operator predicates.
+ * config/i386/i386.c (ix86_expand_fp_movcc): Reject TImode
+ or for -m32 DImode comparisons.
+
2012-11-16 Jan Hubicka <jh@suse.cz>
PR tree-optimization/54717
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index b4e4e72f8fca..03c6675ba143 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -19957,6 +19957,11 @@ ix86_expand_fp_movcc (rtx operands[])
return true;
}
+ if (GET_MODE (op0) == TImode
+ || (GET_MODE (op0) == DImode
+ && !TARGET_64BIT))
+ return false;
+
/* The floating point conditional move instructions don't directly
support conditions resulting from a signed integer comparison. */
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index f21e5cc47b0a..aa75d6b125eb 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -16121,7 +16121,7 @@
(define_expand "mov<mode>cc"
[(set (match_operand:SWIM 0 "register_operand")
- (if_then_else:SWIM (match_operand 1 "ordered_comparison_operator")
+ (if_then_else:SWIM (match_operand 1 "comparison_operator")
(match_operand:SWIM 2 "<general_operand>")
(match_operand:SWIM 3 "<general_operand>")))]
""
@@ -16238,7 +16238,7 @@
(define_expand "mov<mode>cc"
[(set (match_operand:X87MODEF 0 "register_operand")
(if_then_else:X87MODEF
- (match_operand 1 "ix86_fp_comparison_operator")
+ (match_operand 1 "comparison_operator")
(match_operand:X87MODEF 2 "register_operand")
(match_operand:X87MODEF 3 "register_operand")))]
"(TARGET_80387 && TARGET_CMOVE)
--
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