diff options
| -rw-r--r-- | lib/Target/Alpha/AlphaInstrInfo.td | 26 | ||||
| -rw-r--r-- | test/CodeGen/Alpha/2007-11-27-mulneg3.ll | 13 |
2 files changed, 27 insertions, 12 deletions
diff --git a/lib/Target/Alpha/AlphaInstrInfo.td b/lib/Target/Alpha/AlphaInstrInfo.td index 88bcc9d..da24e70 100644 --- a/lib/Target/Alpha/AlphaInstrInfo.td +++ b/lib/Target/Alpha/AlphaInstrInfo.td @@ -1086,16 +1086,18 @@ def : Pat<(mul GPRC:$RA, immRemP2:$imm), (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 diff --git a/test/CodeGen/Alpha/2007-11-27-mulneg3.ll b/test/CodeGen/Alpha/2007-11-27-mulneg3.ll new file mode 100644 index 0000000..3eac13d --- /dev/null +++ b/test/CodeGen/Alpha/2007-11-27-mulneg3.ll @@ -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 +} |