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Fix PR2096, a regression introduced with my patch last night. This

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also fixes cfrac, flops, and 175.vpr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47605 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-02-26 17:09:59 +00:00
parent 72c8f0d156
commit aeecb6c73a
2 changed files with 51 additions and 1 deletions
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2
lib/CodeGen/SelectionDAG/DAGCombiner.cpp
View File

@ -411,7 +411,7 @@ static SDOperand GetNegatedExpression(SDOperand Op, SelectionDAG &DAG,
assert(!HonorSignDependentRoundingFPMath());
// -(X*Y) -> -X * Y
if (isNegatibleForFree(Op.getOperand(0), Depth+1))
if (isNegatibleForFree(Op.getOperand(0), AfterLegalize, Depth+1))
return DAG.getNode(Op.getOpcode(), Op.getValueType(),
GetNegatedExpression(Op.getOperand(0), DAG,
AfterLegalize, Depth+1),

50
test/CodeGen/Generic/2008-02-26-NegatableCrash.ll Normal file
View File

@ -0,0 +1,50 @@
; RUN: llvm-as < %s | llc
; PR2096
%struct.AVClass = type { i8*, i8* (i8*)*, %struct.AVOption* }
%struct.AVCodec = type { i8*, i32, i32, i32, i32 (%struct.AVCodecContext*)*, i32 (%struct.AVCodecContext*, i8*, i32, i8*)*, i32 (%struct.AVCodecContext*)*, i32 (%struct.AVCodecContext*, i8*, i32*, i8*, i32)*, i32, %struct.AVCodec*, void (%struct.AVCodecContext*)*, %struct.AVRational*, i32* }
%struct.AVCodecContext = type { %struct.AVClass*, i32, i32, i32, i32, i32, i8*, i32, %struct.AVRational, i32, i32, i32, i32, i32, void (%struct.AVCodecContext*, %struct.AVFrame*, i32*, i32, i32, i32)*, i32, i32, i32, i32, i32, i32, i32, float, float, i32, i32, i32, i32, float, i32, i32, i32, %struct.AVCodec*, i8*, i32, i32, void (%struct.AVCodecContext*, i8*, i32, i32)*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i8*, [32 x i8], i32, i32, i32, i32, i32, i32, i32, float, i32, i32 (%struct.AVCodecContext*, %struct.AVFrame*)*, void (%struct.AVCodecContext*, %struct.AVFrame*)*, i32, i32, i32, i32, i8*, i8*, float, float, i32, %struct.RcOverride*, i32, i8*, i32, i32, i32, float, float, float, float, i32, float, float, float, float, float, i32, i32, i32, i32*, i32, i32, i32, i32, %struct.AVRational, %struct.AVFrame*, i32, i32, [4 x i64], i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 (%struct.AVCodecContext*, i32*)*, i32, i32, i32, i32, i32, i32, i8*, i32, i32, i32, i32, i32, i32, i16*, i16*, i32, i32, i32, i32, %struct.AVPaletteControl*, i32, i32 (%struct.AVCodecContext*, %struct.AVFrame*)*, i32, i32, i32, i32, i32, i32, i32, i32 (%struct.AVCodecContext*, i32 (%struct.AVCodecContext*, i8*)*, i8**, i32*, i32)*, i8*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, float, i32, i32, i32, i32, i32, i32, i32, i32, float, i32, i32, i32, i32, i32, i32, float, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i64, i32, float }
%struct.AVFrame = type { [4 x i8*], [4 x i32], [4 x i8*], i32, i32, i64, i32, i32, i32, i32, i32, i8*, i32, i8*, [2 x [2 x i16]*], i32*, i8, i8*, [4 x i64], i32, i32, i32, i32, i32, %struct.AVPanScan*, i32, i32, i16*, [2 x i8*] }
%struct.AVOption = type opaque
%struct.AVPaletteControl = type { i32, [256 x i32] }
%struct.AVPanScan = type { i32, i32, i32, [3 x [2 x i16]] }
%struct.AVRational = type { i32, i32 }
%struct.RcOverride = type { i32, i32, i32, float }
define i32 @sonic_encode_frame(%struct.AVCodecContext* %avctx, i8* %buf, i32 %buf_size, i8* %data) {
entry:
switch i32 0, label %bb429 [
i32 0, label %bb244.preheader
i32 1, label %bb279.preheader
]
bb279.preheader: ; preds = %entry
ret i32 0
bb244.preheader: ; preds = %entry
ret i32 0
bb429: ; preds = %entry
br i1 false, label %bb.nph1770, label %bb627
bb.nph1770: ; preds = %bb429
br i1 false, label %bb471, label %bb505
bb471: ; preds = %bb471, %bb.nph1770
%tmp487 = add double 0.000000e+00, 0.000000e+00 ; <double> [#uses=1]
br i1 false, label %bb505, label %bb471
bb505: ; preds = %bb471, %bb.nph1770
%xy.0.lcssa = phi double [ 0.000000e+00, %bb.nph1770 ], [ %tmp487, %bb471 ] ; <double> [#uses=1]
%tmp507 = sub double -0.000000e+00, %xy.0.lcssa ; <double> [#uses=1]
%tmp509 = fdiv double %tmp507, 0.000000e+00 ; <double> [#uses=1]
%tmp510 = mul double %tmp509, 1.024000e+03 ; <double> [#uses=1]
%tmp516 = fdiv double %tmp510, 0.000000e+00 ; <double> [#uses=1]
%tmp517 = add double %tmp516, 5.000000e-01 ; <double> [#uses=1]
%tmp518 = tail call double @floor( double %tmp517 ) nounwind readnone ; <double> [#uses=0]
ret i32 0
bb627: ; preds = %bb429
ret i32 0
}
declare double @floor(double) nounwind readnone