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authorJakub Jelinek <jakub@redhat.com>2009-05-21 15:32:47 +0200
committerJakub Jelinek <jakub@gcc.gnu.org>2009-05-21 15:32:47 +0200
commit93cac287cb05b729da30116dc621dc0dd0164bed (patch)
tree462b35c2f312c8549bcf1cdb37764c922a222bda
parenta952487c45d701416fc353fef8eb540c9909e399 (diff)
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i386.md (adddi_4_rex64, [...]): For operand2 -128 override length_immediate attribute to 1.
* config/i386/i386.md (adddi_4_rex64, addsi_4, addhi_4): For operand2 -128 override length_immediate attribute to 1. * config/i386/predicates.md (constm128_operand): New predicate. From-SVN: r147767
-rw-r--r--gcc/ChangeLog4
-rw-r--r--gcc/config/i386/i386.md15
-rw-r--r--gcc/config/i386/predicates.md5
3 files changed, 24 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 29fd61b..3c4c882 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,9 @@
2009-05-21 Jakub Jelinek <jakub@redhat.com>
+ * config/i386/i386.md (adddi_4_rex64, addsi_4, addhi_4): For
+ operand2 -128 override length_immediate attribute to 1.
+ * config/i386/predicates.md (constm128_operand): New predicate.
+
* config/i386/i386.c (memory_address_length): Handle %r12
the same as %rsp and %r13 the same as %rbp. For %rsp and %rbp
also check REGNO.
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 6d439f0..596f770 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -6648,6 +6648,11 @@
(if_then_else (match_operand:DI 2 "incdec_operand" "")
(const_string "incdec")
(const_string "alu")))
+ (set (attr "length_immediate")
+ (if_then_else
+ (and (eq_attr "type" "alu") (match_operand 2 "constm128_operand" ""))
+ (const_string "1")
+ (const_string "*")))
(set_attr "mode" "DI")])
(define_insn "*adddi_5_rex64"
@@ -7114,6 +7119,11 @@
(if_then_else (match_operand:SI 2 "incdec_operand" "")
(const_string "incdec")
(const_string "alu")))
+ (set (attr "length_immediate")
+ (if_then_else
+ (and (eq_attr "type" "alu") (match_operand 2 "constm128_operand" ""))
+ (const_string "1")
+ (const_string "*")))
(set_attr "mode" "SI")])
(define_insn "*addsi_5"
@@ -7397,6 +7407,11 @@
(if_then_else (match_operand:HI 2 "incdec_operand" "")
(const_string "incdec")
(const_string "alu")))
+ (set (attr "length_immediate")
+ (if_then_else
+ (and (eq_attr "type" "alu") (match_operand 2 "constm128_operand" ""))
+ (const_string "1")
+ (const_string "*")))
(set_attr "mode" "SI")])
diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
index fc89ec4..c9921d6 100644
--- a/gcc/config/i386/predicates.md
+++ b/gcc/config/i386/predicates.md
@@ -587,6 +587,11 @@
(and (match_code "const_int")
(match_test "INTVAL (op) == 128")))
+;; Match exactly -128.
+(define_predicate "constm128_operand"
+ (and (match_code "const_int")
+ (match_test "INTVAL (op) == -128")))
+
;; Match 2, 4, or 8. Used for leal multiplicands.
(define_predicate "const248_operand"
(match_code "const_int")