[llvm-commits] [llvm] r44370 - in /llvm/trunk: lib/Target/Alpha/AlphaInstrInfo.td test/CodeGen/Alpha/2007-11-27-mulneg3.ll

[Andrew Lenharth]

Author: alenhar2
Date: Tue Nov 27 12:31:30 2007
New Revision: 44370

URL: http://llvm.org/viewvc/llvm-project?rev=44370&view=rev
Log:
something wrong with this opt

Added:
    llvm/trunk/test/CodeGen/Alpha/2007-11-27-mulneg3.ll
Modified:
    llvm/trunk/lib/Target/Alpha/AlphaInstrInfo.td

Modified: llvm/trunk/lib/Target/Alpha/AlphaInstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Alpha/AlphaInstrInfo.td?rev=44370&r1=44369&r2=44370&view=diff

==============================================================================
--- llvm/trunk/lib/Target/Alpha/AlphaInstrInfo.td (original)
+++ llvm/trunk/lib/Target/Alpha/AlphaInstrInfo.td Tue Nov 27 12:31:30 2007
@@ -1086,16 +1086,18 @@
           (ADDQr (SLr GPRC:$RA, (nearP2X immRemP2:$imm)), (SLi GPRC:$RA, (nearP2RemX immRemP2:$imm)))>;
 
 //n is below a power of 2
-def : Pat<(mul GPRC:$RA, immRem1n:$imm), 
-          (SUBQr (SLr GPRC:$RA, (nearP2X immRem1n:$imm)), GPRC:$RA)>;
-def : Pat<(mul GPRC:$RA, immRem2n:$imm), 
-          (SUBQr (SLr GPRC:$RA, (nearP2X immRem2n:$imm)), (ADDQr GPRC:$RA, GPRC:$RA))>;
-def : Pat<(mul GPRC:$RA, immRem3n:$imm),
-          (SUBQr (SLr GPRC:$RA, (nearP2X immRem3n:$imm)), (S4SUBQr GPRC:$RA, GPRC:$RA))>;
-def : Pat<(mul GPRC:$RA, immRem4n:$imm),
-          (SUBQr (SLr GPRC:$RA, (nearP2X immRem4n:$imm)), (SLi GPRC:$RA, 2))>;
-def : Pat<(mul GPRC:$RA, immRem5n:$imm),
-          (SUBQr (SLr GPRC:$RA, (nearP2X immRem5n:$imm)), (S4ADDQr GPRC:$RA, GPRC:$RA))>;
-def : Pat<(mul GPRC:$RA, immRemP2n:$imm),
-          (SUBQr (SLr GPRC:$RA, (nearP2X immRemP2n:$imm)), (SLi GPRC:$RA, (nearP2RemX immRemP2n:$imm)))>;
+//FIXME: figure out why something is truncating the imm to 32bits
+// this will fix 2007-11-27-mulneg3
+//def : Pat<(mul GPRC:$RA, immRem1n:$imm), 
+//          (SUBQr (SLr GPRC:$RA, (nearP2X immRem1n:$imm)), GPRC:$RA)>;
+//def : Pat<(mul GPRC:$RA, immRem2n:$imm), 
+//          (SUBQr (SLr GPRC:$RA, (nearP2X immRem2n:$imm)), (ADDQr GPRC:$RA, GPRC:$RA))>;
+//def : Pat<(mul GPRC:$RA, immRem3n:$imm),
+//          (SUBQr (SLr GPRC:$RA, (nearP2X immRem3n:$imm)), (S4SUBQr GPRC:$RA, GPRC:$RA))>;
+//def : Pat<(mul GPRC:$RA, immRem4n:$imm),
+//          (SUBQr (SLr GPRC:$RA, (nearP2X immRem4n:$imm)), (SLi GPRC:$RA, 2))>;
+//def : Pat<(mul GPRC:$RA, immRem5n:$imm),
+//          (SUBQr (SLr GPRC:$RA, (nearP2X immRem5n:$imm)), (S4ADDQr GPRC:$RA, GPRC:$RA))>;
+//def : Pat<(mul GPRC:$RA, immRemP2n:$imm),
+//          (SUBQr (SLr GPRC:$RA, (nearP2X immRemP2n:$imm)), (SLi GPRC:$RA, (nearP2RemX immRemP2n:$imm)))>;
 } //Added complexity

Added: llvm/trunk/test/CodeGen/Alpha/2007-11-27-mulneg3.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/Alpha/2007-11-27-mulneg3.ll?rev=44370&view=auto

==============================================================================
--- llvm/trunk/test/CodeGen/Alpha/2007-11-27-mulneg3.ll (added)
+++ llvm/trunk/test/CodeGen/Alpha/2007-11-27-mulneg3.ll Tue Nov 27 12:31:30 2007
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s | llc -march=alpha
+
+;FIXME: this should produce no mul inst.  But not crashing will have to do for now
+
+; ModuleID = 'Output/bugpoint-train/bugpoint-reduced-simplified.bc'
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f128:128:128"
+target triple = "alphaev6-unknown-linux-gnu"
+
+define fastcc i32 @getcount(i32 %s) {
+cond_next43:		; preds = %bb27
+	%tmp431 = mul i32 %s, -3
+	ret i32 %tmp431
+}