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| author | Chris Lattner <sabre@nondot.org> | 2009-07-23 21:26:18 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2009-07-23 21:26:18 +0000 |
| commit | b8523fae98888e969edc2fd5452887c686a0477c (patch) | |
| tree | 668500f9efafed97debce9b1d7a161727bf4ac60 /lib | |
| parent | f147a5b2310d62860021367b5cd1b74fe6439ef8 (diff) | |
| download | external_llvm-b8523fae98888e969edc2fd5452887c686a0477c.zip external_llvm-b8523fae98888e969edc2fd5452887c686a0477c.tar.gz external_llvm-b8523fae98888e969edc2fd5452887c686a0477c.tar.bz2 | |
"fix" PR4612, which is a crash on:
%0 = malloc [3758096384 x i32]
The "malloc" instruction doesn't support 64-bits correctly (see PR715),
and should be removed. Victor is actively working on fixing this, in
the meantime just don't crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76899 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp index 30236e3..1135376 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp @@ -5431,9 +5431,13 @@ void SelectionDAGLowering::visitMalloc(MallocInst &I) { // multiply on 64-bit targets. // FIXME: Malloc inst should go away: PR715. uint64_t ElementSize = TD->getTypeAllocSize(I.getType()->getElementType()); - if (ElementSize != 1) + if (ElementSize != 1) { + // Src is always 32-bits, make sure the constant fits. + assert(Src.getValueType() == MVT::i32); + ElementSize = (uint32_t)ElementSize; Src = DAG.getNode(ISD::MUL, getCurDebugLoc(), Src.getValueType(), Src, DAG.getConstant(ElementSize, Src.getValueType())); + } MVT IntPtr = TLI.getPointerTy(); |