Author: alenhar2
Date: Thu Nov 8 11:39:28 2007
New Revision: 43893
URL: http://llvm.org/viewvc/llvm-project?rev=43893&view=rev
Log:
Fix PR1780
Added:
llvm/trunk/test/Transforms/InstCombine/2007-11-07-OpaqueAlignCrash.ll
Modified:
llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp
Modified: llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp?rev=43893&r1=43892&r2=43893&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/InstructionCombining.cpp Thu Nov 8
11:39:28 2007
@@ -7582,7 +7582,7 @@
unsigned PrefAlign = 0) {
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) {
unsigned Align = GV->getAlignment();
- if (Align == 0 && TD)
+ if (Align == 0 && TD && !isa<OpaqueType>(GV->getType()->getElementType()))
Align = TD->getPrefTypeAlignment(GV->getType()->getElementType());
// If there is a large requested alignment and we can, bump up the
alignment
Added: llvm/trunk/test/Transforms/InstCombine/2007-11-07-OpaqueAlignCrash.ll
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/2007-11-07-OpaqueAlignCrash.ll?rev=43893&view=auto
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/2007-11-07-OpaqueAlignCrash.ll
(added)
+++ llvm/trunk/test/Transforms/InstCombine/2007-11-07-OpaqueAlignCrash.ll Thu
Nov 8 11:39:28 2007
@@ -0,0 +1,19 @@
+; RUN: llvm-as < %s | opt -instcombine -disable-output
+; PR1780
+
+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"
+target triple = "i686-pc-linux-gnu"
+
+%opaque_t = type opaque
+
[EMAIL PROTECTED] = external global %opaque_t
+
+define i32 @foo() {
+entry:
+ %x = load i8* bitcast (%opaque_t* @g to i8*)
+ %y = load i32* bitcast (%opaque_t* @g to i32*)
+ %z = zext i8 %x to i32
+ %r = add i32 %y, %z
+ ret i32 %r
+}
+
_______________________________________________
llvm-commits mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
