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fix PR6435 another bug from the MallocInst elimination work.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97231 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-02-26 18:23:13 +00:00
parent 818747c9dd
commit 3f5e0b8114
2 changed files with 28 additions and 3 deletions
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4
lib/Transforms/IPO/GlobalOpt.cpp
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@ -1297,9 +1297,7 @@ static GlobalVariable *PerformHeapAllocSRoA(GlobalVariable *GV, CallInst *CI,
ConstantInt::get(IntPtrTy, TypeSize),
NElems,
CI->getName() + ".f" + Twine(FieldNo));
CallInst *NCI = dyn_cast<BitCastInst>(NMI) ?
extractMallocCallFromBitCast(NMI) : cast<CallInst>(NMI);
FieldMallocs.push_back(NCI);
FieldMallocs.push_back(NMI);
new StoreInst(NMI, NGV, CI);
}

27
test/Transforms/GlobalOpt/2010-02-26-MallocSROA.ll Normal file
View File

@ -0,0 +1,27 @@
; RUN: opt -globalopt -S %s
; PR6435
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
target triple = "x86_64-unknown-linux-gnu"
%struct.xyz = type { double, i32 }
@Y = internal global %struct.xyz* null ; <%struct.xyz**> [#uses=2]
@numf2s = external global i32 ; <i32*> [#uses=1]
define fastcc void @init_net() nounwind {
entry:
%0 = load i32* @numf2s, align 4 ; <i32> [#uses=1]
%mallocsize2 = shl i32 %0, 4 ; <i32> [#uses=1]
%malloccall3 = tail call i8* @malloc(i32 %mallocsize2) nounwind ; <i8*> [#uses=1]
%1 = bitcast i8* %malloccall3 to %struct.xyz* ; <%struct.xyz*> [#uses=1]
store %struct.xyz* %1, %struct.xyz** @Y, align 8
ret void
}
define fastcc void @load_train(i8* %trainfile, i32 %mode, i32 %objects) nounwind {
entry:
%0 = load %struct.xyz** @Y, align 8 ; <%struct.xyz*> [#uses=0]
ret void
}
declare noalias i8* @malloc(i32)