Changes in directory llvm/lib/Target/Alpha:
AlphaInstrInfo.td updated: 1.124 -> 1.125
Readme.txt updated: 1.3 -> 1.4
---
Log message:
catch constants more often
---
Diffs of the changes: (+14 -16)
AlphaInstrInfo.td | 14 ++++++++++++++
Readme.txt | 16 ----------------
2 files changed, 14 insertions(+), 16 deletions(-)
Index: llvm/lib/Target/Alpha/AlphaInstrInfo.td
diff -u llvm/lib/Target/Alpha/AlphaInstrInfo.td:1.124
llvm/lib/Target/Alpha/AlphaInstrInfo.td:1.125
--- llvm/lib/Target/Alpha/AlphaInstrInfo.td:1.124 Mon Sep 18 13:01:03 2006
+++ llvm/lib/Target/Alpha/AlphaInstrInfo.td Wed Sep 20 10:05:49 2006
@@ -214,6 +214,20 @@
def : Pat<(select GPRC:$which, GPRC:$src1, immUExt8:$src2),
(CMOVEQi GPRC:$src1, immUExt8:$src2, GPRC:$which)>;
+//Invert sense when we can for constants:
+def : Pat<(select (seteq GPRC:$RCOND, 0), immUExt8:$RFALSE, GPRC:$RTRUE),
+ (CMOVEQi GPRC:$RTRUE, immUExt8:$RFALSE, GPRC:$RCOND)>;
+def : Pat<(select (setne GPRC:$RCOND, 0), immUExt8:$RFALSE, GPRC:$RTRUE),
+ (CMOVNEi GPRC:$RTRUE, immUExt8:$RFALSE, GPRC:$RCOND)>;
+def : Pat<(select (setgt GPRC:$RCOND, 0), immUExt8:$RFALSE, GPRC:$RTRUE),
+ (CMOVGTi GPRC:$RTRUE, immUExt8:$RFALSE, GPRC:$RCOND)>;
+def : Pat<(select (setge GPRC:$RCOND, 0), immUExt8:$RFALSE, GPRC:$RTRUE),
+ (CMOVGEi GPRC:$RTRUE, immUExt8:$RFALSE, GPRC:$RCOND)>;
+def : Pat<(select (setlt GPRC:$RCOND, 0), immUExt8:$RFALSE, GPRC:$RTRUE),
+ (CMOVLTi GPRC:$RTRUE, immUExt8:$RFALSE, GPRC:$RCOND)>;
+def : Pat<(select (setle GPRC:$RCOND, 0), immUExt8:$RFALSE, GPRC:$RTRUE),
+ (CMOVLEi GPRC:$RTRUE, immUExt8:$RFALSE, GPRC:$RCOND)>;
+
def ADDL : OForm< 0x10, 0x00, "addl $RA,$RB,$RC",
[(set GPRC:$RC, (intop (add GPRC:$RA, GPRC:$RB)))],
s_iadd>;
Index: llvm/lib/Target/Alpha/Readme.txt
diff -u llvm/lib/Target/Alpha/Readme.txt:1.3
llvm/lib/Target/Alpha/Readme.txt:1.4
--- llvm/lib/Target/Alpha/Readme.txt:1.3 Wed Sep 20 09:48:00 2006
+++ llvm/lib/Target/Alpha/Readme.txt Wed Sep 20 10:05:49 2006
@@ -1,20 +1,4 @@
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-Fix cmovs with a constant on the wrong side
-
-aka:
- lda $0,10($31)
- cmovlt $17,$0,$16
-
-is bad for:
-
-long %cmov_lt2(long %a, long %c) {
-entry:
- %tmp.1 = setlt long %c, 0
- %retval = select bool %tmp.1, long 10, long %a
- ret long %retval
-}
-
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Fix Ordered/Unordered FP stuff
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