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https://github.com/c64scene-ar/llvm-6502.git
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Fix llvm::ComputeNumSignBits to handle pointer types
conservatively correctly, instead of aborting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73908 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
parent
753ad615f9
commit
bd5ce52740
@ -624,8 +624,12 @@ bool llvm::MaskedValueIsZero(Value *V, const APInt &Mask,
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/// 'Op' must have a scalar integer type.
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///
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unsigned llvm::ComputeNumSignBits(Value *V, TargetData *TD, unsigned Depth) {
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assert((TD || V->getType()->isIntOrIntVector()) &&
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"ComputeNumSignBits requires a TargetData object to operate "
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"on non-integer values!");
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const Type *Ty = V->getType();
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unsigned TyBits = Ty->getScalarSizeInBits();
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unsigned TyBits = TD ? TD->getTypeSizeInBits(V->getType()->getScalarType()) :
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Ty->getScalarSizeInBits();
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unsigned Tmp, Tmp2;
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unsigned FirstAnswer = 1;
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220
test/Analysis/ScalarEvolution/pointer-sign-bits.ll
Normal file
220
test/Analysis/ScalarEvolution/pointer-sign-bits.ll
Normal file
@ -0,0 +1,220 @@
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; RUN: llvm-as < %s | opt -analyze -scalar-evolution -disable-output
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
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%JavaObject = type { [0 x i32 (...)*]*, i8* }
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define void @JnJVM_antlr_CSharpCodeGenerator_genBitSet__Lantlr_collections_impl_BitSet_2I(%JavaObject*, %JavaObject*, i32) {
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start:
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br i1 undef, label %"stack overflow", label %"no stack overflow"
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"GOTO or IF*2": ; preds = %"true verifyAndComputePtr89", %verifyNullCont84
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unreachable
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"GOTO or IF*5": ; preds = %"true verifyAndComputePtr127", %"GOTO or IF*6"
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unreachable
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"GOTO or IF*6": ; preds = %"true verifyAndComputePtr131.GOTO or IF*6_crit_edge", %"true verifyAndComputePtr89"
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%indvar = phi i32 [ %indvar.next, %"true verifyAndComputePtr131.GOTO or IF*6_crit_edge" ], [ 0, %"true verifyAndComputePtr89" ] ; <i32> [#uses=2]
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%.0.in = add i32 %indvar, 0 ; <i32> [#uses=1]
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%.0 = add i32 %.0.in, 1 ; <i32> [#uses=1]
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%3 = icmp slt i32 %.0, %4 ; <i1> [#uses=1]
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br i1 %3, label %verifyNullCont126, label %"GOTO or IF*5"
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end: ; preds = %"no exception block35"
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ret void
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"stack overflow": ; preds = %start
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ret void
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"no stack overflow": ; preds = %start
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br i1 undef, label %verifyNullCont, label %"no stack overflow.end_crit_edge"
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"no stack overflow.end_crit_edge": ; preds = %"no stack overflow"
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ret void
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verifyNullCont: ; preds = %"no stack overflow"
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br i1 undef, label %verifyNullCont9, label %verifyNullCont.end_crit_edge
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verifyNullCont.end_crit_edge: ; preds = %verifyNullCont
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ret void
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verifyNullCont9: ; preds = %verifyNullCont
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br i1 undef, label %verifyNullCont12, label %verifyNullCont9.end_crit_edge
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verifyNullCont9.end_crit_edge: ; preds = %verifyNullCont9
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ret void
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verifyNullCont12: ; preds = %verifyNullCont9
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br i1 undef, label %"no exception block13", label %verifyNullCont12.end_crit_edge
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verifyNullCont12.end_crit_edge: ; preds = %verifyNullCont12
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ret void
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"no exception block13": ; preds = %verifyNullCont12
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br i1 undef, label %verifyNullExit14, label %verifyNullCont15
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verifyNullExit14: ; preds = %"no exception block13"
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ret void
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verifyNullCont15: ; preds = %"no exception block13"
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br i1 undef, label %"no exception block16", label %verifyNullCont15.end_crit_edge
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verifyNullCont15.end_crit_edge: ; preds = %verifyNullCont15
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ret void
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"no exception block16": ; preds = %verifyNullCont15
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br i1 undef, label %verifyNullExit17, label %verifyNullCont18
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verifyNullExit17: ; preds = %"no exception block16"
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ret void
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verifyNullCont18: ; preds = %"no exception block16"
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br i1 undef, label %"no exception block19", label %verifyNullCont18.end_crit_edge
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verifyNullCont18.end_crit_edge: ; preds = %verifyNullCont18
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ret void
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"no exception block19": ; preds = %verifyNullCont18
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br i1 undef, label %verifyNullExit20, label %verifyNullCont21
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verifyNullExit20: ; preds = %"no exception block19"
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ret void
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verifyNullCont21: ; preds = %"no exception block19"
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br i1 undef, label %verifyNullCont24, label %verifyNullCont21.end_crit_edge
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verifyNullCont21.end_crit_edge: ; preds = %verifyNullCont21
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ret void
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verifyNullCont24: ; preds = %verifyNullCont21
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br i1 undef, label %verifyNullCont27, label %verifyNullCont24.end_crit_edge
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verifyNullCont24.end_crit_edge: ; preds = %verifyNullCont24
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ret void
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verifyNullCont27: ; preds = %verifyNullCont24
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br i1 undef, label %verifyNullCont32, label %verifyNullCont27.end_crit_edge
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verifyNullCont27.end_crit_edge: ; preds = %verifyNullCont27
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ret void
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verifyNullCont32: ; preds = %verifyNullCont27
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br i1 undef, label %verifyNullExit33, label %verifyNullCont34
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verifyNullExit33: ; preds = %verifyNullCont32
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ret void
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verifyNullCont34: ; preds = %verifyNullCont32
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br i1 undef, label %"no exception block35", label %verifyNullCont34.end_crit_edge
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verifyNullCont34.end_crit_edge: ; preds = %verifyNullCont34
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ret void
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"no exception block35": ; preds = %verifyNullCont34
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br i1 undef, label %end, label %verifyNullCont60
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verifyNullCont60: ; preds = %"no exception block35"
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br i1 undef, label %verifyNullCont63, label %verifyNullCont60.end_crit_edge
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verifyNullCont60.end_crit_edge: ; preds = %verifyNullCont60
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ret void
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verifyNullCont63: ; preds = %verifyNullCont60
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br i1 undef, label %"no exception block64", label %verifyNullCont63.end_crit_edge
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verifyNullCont63.end_crit_edge: ; preds = %verifyNullCont63
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ret void
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"no exception block64": ; preds = %verifyNullCont63
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br i1 undef, label %verifyNullExit65, label %verifyNullCont66
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verifyNullExit65: ; preds = %"no exception block64"
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ret void
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verifyNullCont66: ; preds = %"no exception block64"
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br i1 undef, label %"no exception block67", label %verifyNullCont66.end_crit_edge
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verifyNullCont66.end_crit_edge: ; preds = %verifyNullCont66
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ret void
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"no exception block67": ; preds = %verifyNullCont66
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br i1 undef, label %verifyNullExit68, label %verifyNullCont69
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verifyNullExit68: ; preds = %"no exception block67"
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ret void
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verifyNullCont69: ; preds = %"no exception block67"
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br i1 undef, label %"no exception block70", label %verifyNullCont69.end_crit_edge
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verifyNullCont69.end_crit_edge: ; preds = %verifyNullCont69
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ret void
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"no exception block70": ; preds = %verifyNullCont69
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br i1 undef, label %verifyNullExit71, label %verifyNullCont72
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verifyNullExit71: ; preds = %"no exception block70"
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ret void
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verifyNullCont72: ; preds = %"no exception block70"
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br i1 undef, label %verifyNullCont75, label %verifyNullCont72.end_crit_edge
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verifyNullCont72.end_crit_edge: ; preds = %verifyNullCont72
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ret void
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verifyNullCont75: ; preds = %verifyNullCont72
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br i1 undef, label %verifyNullCont78, label %verifyNullCont75.end_crit_edge
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verifyNullCont75.end_crit_edge: ; preds = %verifyNullCont75
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ret void
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verifyNullCont78: ; preds = %verifyNullCont75
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br i1 undef, label %"verifyNullCont78.GOTO or IF*4_crit_edge", label %verifyNullCont78.end_crit_edge
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"verifyNullCont78.GOTO or IF*4_crit_edge": ; preds = %verifyNullCont78
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br i1 undef, label %verifyNullExit80, label %verifyNullCont81
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verifyNullCont78.end_crit_edge: ; preds = %verifyNullCont78
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ret void
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verifyNullExit80: ; preds = %"verifyNullCont78.GOTO or IF*4_crit_edge"
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ret void
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verifyNullCont81: ; preds = %"verifyNullCont78.GOTO or IF*4_crit_edge"
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%4 = ptrtoint i8* undef to i32 ; <i32> [#uses=2]
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%5 = icmp slt i32 0, %4 ; <i1> [#uses=1]
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br i1 %5, label %verifyNullCont84, label %verifyNullCont172
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verifyNullCont84: ; preds = %verifyNullCont81
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br i1 undef, label %"GOTO or IF*2", label %verifyNullCont86
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verifyNullCont86: ; preds = %verifyNullCont84
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br i1 undef, label %"true verifyAndComputePtr", label %"false verifyAndComputePtr"
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"true verifyAndComputePtr": ; preds = %verifyNullCont86
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br i1 undef, label %"true verifyAndComputePtr89", label %"false verifyAndComputePtr90"
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"false verifyAndComputePtr": ; preds = %verifyNullCont86
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ret void
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"true verifyAndComputePtr89": ; preds = %"true verifyAndComputePtr"
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br i1 undef, label %"GOTO or IF*6", label %"GOTO or IF*2"
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"false verifyAndComputePtr90": ; preds = %"true verifyAndComputePtr"
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ret void
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verifyNullCont126: ; preds = %"GOTO or IF*6"
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br i1 undef, label %"true verifyAndComputePtr127", label %"false verifyAndComputePtr128"
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"true verifyAndComputePtr127": ; preds = %verifyNullCont126
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br i1 undef, label %"true verifyAndComputePtr131.GOTO or IF*6_crit_edge", label %"GOTO or IF*5"
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"false verifyAndComputePtr128": ; preds = %verifyNullCont126
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ret void
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"true verifyAndComputePtr131.GOTO or IF*6_crit_edge": ; preds = %"true verifyAndComputePtr127"
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%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
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br label %"GOTO or IF*6"
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verifyNullCont172: ; preds = %verifyNullCont81
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unreachable
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}
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