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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43897 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth 2007-11-08 18:45:15 +00:00
parent ab9338eb9f
commit b410df995c
2 changed files with 5 additions and 2 deletions
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2
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -7582,7 +7582,7 @@ static unsigned GetOrEnforceKnownAlignment(Value *V, TargetData *TD,
unsigned PrefAlign = 0) {
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) {
unsigned Align = GV->getAlignment();
if (Align == 0 && TD && !isa<OpaqueType>(GV->getType()->getElementType()))
if (Align == 0 && TD && GV->getType()->getElementType()->isSized())
Align = TD->getPrefTypeAlignment(GV->getType()->getElementType());
// If there is a large requested alignment and we can, bump up the alignment

5
test/Transforms/InstCombine/2007-11-07-OpaqueAlignCrash.ll
View File

@ -6,12 +6,15 @@ target triple = "i686-pc-linux-gnu"
%opaque_t = type opaque
%op_ts = type {opaque, i32}
@g = external global %opaque_t
@h = external global %op_ts
define i32 @foo() {
entry:
%x = load i8* bitcast (%opaque_t* @g to i8*)
%y = load i32* bitcast (%opaque_t* @g to i32*)
%y = load i32* bitcast (%op_ts* @h to i32*)
%z = zext i8 %x to i32
%r = add i32 %y, %z
ret i32 %r