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authorKazu Hirata <kazu@cs.umass.edu>2003-04-07 10:17:24 +0000
committerKazu Hirata <kazu@gcc.gnu.org>2003-04-07 10:17:24 +0000
commit093b05b68f7b6c8bd35bf2dc50acfea95a418f39 (patch)
tree753477b4daa69bde72da1e74fe353b8e46806864 /gcc
parent9a94f7f323d52007fa3222cc744cce4aa6f1f22b (diff)
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h8300.md (*zero_extendqisi2_h8300hs): Always split.
* config/h8300/h8300.md (*zero_extendqisi2_h8300hs): Always split. (a splitter): Do zero-extension via HImode. From-SVN: r65327
Diffstat (limited to 'gcc')
-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/config/h8300/h8300.md13
2 files changed, 12 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a9d111d..716f7d1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2003-04-07 Kazu Hirata <kazu@cs.umass.edu>
+
+ * config/h8300/h8300.md (*zero_extendqisi2_h8300hs): Always
+ split.
+ (a splitter): Do zero-extension via HImode.
+
2003-04-07 James A. Morrison <ja2morri@uwaterloo.ca>
* doc/invoke.texi: Eliminate extra white-space caused by
diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md
index 6bc0cf0..89014dd 100644
--- a/gcc/config/h8300/h8300.md
+++ b/gcc/config/h8300/h8300.md
@@ -2084,11 +2084,7 @@
[(set (match_operand:SI 0 "register_operand" "=r,r")
(zero_extend:SI (match_operand:QI 1 "general_operand_src" "0,g>")))]
"TARGET_H8300H || TARGET_H8300S"
- "@
- extu.w %T0\;extu.l %S0
- #"
- [(set_attr "length" "4,12")
- (set_attr "cc" "set_znv,set_znv")])
+ "#")
(define_split
[(set (match_operand:SI 0 "register_operand" "")
@@ -2098,9 +2094,12 @@
&& reload_completed"
[(set (match_dup 2)
(match_dup 1))
+ (set (match_dup 3)
+ (zero_extend:HI (match_dup 2)))
(set (match_dup 0)
- (zero_extend:SI (match_dup 2)))]
- "operands[2] = gen_rtx_REG (QImode, REGNO (operands[0]));")
+ (zero_extend:SI (match_dup 3)))]
+ "operands[2] = gen_lowpart (QImode, operands[0]);
+ operands[3] = gen_lowpart (HImode, operands[0]);")
(define_split
[(set (match_operand:SI 0 "register_operand" "")