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loosen up an assertion that isn't valid when called from

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invalidateCachedPointerInfo.  Thanks to Bill for sending me
a testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60805 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-12-09 22:45:32 +00:00
parent bcf28c08b3
commit 5a45bf1b48
2 changed files with 27 additions and 1 deletions
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2
lib/Analysis/MemoryDependenceAnalysis.cpp
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@ -687,7 +687,7 @@ RemoveCachedNonLocalPointerDependencies(ValueIsLoadPair P) {
for (unsigned i = 0, e = PInfo.size(); i != e; ++i) {
Instruction *Target = PInfo[i].second.getInst();
if (Target == 0) continue; // Ignore non-local dep results.
assert(Target->getParent() == PInfo[i].first && Target != P.getPointer());
assert(Target->getParent() == PInfo[i].first);
// Eliminating the dirty entry from 'Cache', so update the reverse info.
RemoveFromReverseMap(ReverseNonLocalPtrDeps, Target, P.getOpaqueValue());

26
test/Transforms/GVN/2008-12-09-SelfRemove.ll Normal file
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@ -0,0 +1,26 @@
; RUN: llvm-as < %s | opt -gvn | llvm-dis | grep getelementptr | count 1
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-f80:128:128"
target triple = "i386-apple-darwin9.5"
%struct.anon = type { i8*, i32 }
%struct.d_print_info = type { i32, i8*, i32, i32, %struct.d_print_template*, %struct.d_print_mod*, i32 }
%struct.d_print_mod = type { %struct.d_print_mod*, %struct.demangle_component*, i32, %struct.d_print_template* }
%struct.d_print_template = type { %struct.d_print_template*, %struct.demangle_component* }
%struct.demangle_component = type { i32, { %struct.anon } }
define void @d_print_mod_list(%struct.d_print_info* %dpi, %struct.d_print_mod* %mods, i32 %suffix) nounwind {
entry:
%0 = getelementptr %struct.d_print_info* %dpi, i32 0, i32 1 ; <i8**> [#uses=1]
br i1 false, label %return, label %bb
bb: ; preds = %entry
%1 = load i8** %0, align 4 ; <i8*> [#uses=0]
%2 = getelementptr %struct.d_print_info* %dpi, i32 0, i32 1 ; <i8**> [#uses=0]
br label %bb21
bb21: ; preds = %bb21, %bb
br label %bb21
return: ; preds = %entry
ret void
}