[llvm-commits] [llvm] r100936 - in /llvm/trunk: lib/Transforms/IPO/GlobalOpt.cpp test/Transforms/GlobalOpt/crash.ll
Chris Lattner
sabre at nondot.org
Sat Apr 10 11:19:22 PDT 2010
Author: lattner
Date: Sat Apr 10 13:19:22 2010
New Revision: 100936
URL: http://llvm.org/viewvc/llvm-project?rev=100936&view=rev
Log:
fix PR6760, a missing check in heap SRoA.
Modified:
llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp
llvm/trunk/test/Transforms/GlobalOpt/crash.ll
Modified: llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp?rev=100936&r1=100935&r2=100936&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/GlobalOpt.cpp Sat Apr 10 13:19:22 2010
@@ -966,7 +966,8 @@
continue; // Otherwise, storing through it, or storing into GV... fine.
}
- if (isa<GetElementPtrInst>(Inst)) {
+ // Must index into the array and into the struct.
+ if (isa<GetElementPtrInst>(Inst) && Inst->getNumOperands() >= 3) {
if (!ValueIsOnlyUsedLocallyOrStoredToOneGlobal(Inst, GV, PHIs))
return false;
continue;
Modified: llvm/trunk/test/Transforms/GlobalOpt/crash.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/GlobalOpt/crash.ll?rev=100936&r1=100935&r2=100936&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/GlobalOpt/crash.ll (original)
+++ llvm/trunk/test/Transforms/GlobalOpt/crash.ll Sat Apr 10 13:19:22 2010
@@ -9,8 +9,34 @@
@_ZL6vTwist = global %struct.btSimdScalar zeroinitializer ; <%struct.btSimdScalar*> [#uses=1]
@llvm.global_ctors = appending global [1 x %0] [%0 { i32 65535, void ()* @_GLOBAL__I__ZN21btConeTwistConstraintC2Ev }] ; <[12 x %0]*> [#uses=0]
-define internal void @_GLOBAL__I__ZN21btConeTwistConstraintC2Ev() nounwind section "__TEXT,__StaticInit,regular,pure_instructions" {
+define internal void @_GLOBAL__I__ZN21btConeTwistConstraintC2Ev() nounwind section "__TEXT,__StaticInit,regular,pure_instructions" {
entry:
store float 1.0, float* getelementptr inbounds (%struct.btSimdScalar* @_ZL6vTwist, i32 0, i32 0, i32 0, i32 3), align 4
ret void
}
+
+
+; PR6760
+%T = type { [5 x i32] }
+
+ at switch_inf = internal global %T* null
+
+define void @test(i8* %arch_file, i32 %route_type) {
+entry:
+ %A = sext i32 1 to i64
+ %B = mul i64 %A, 20
+ %C = call noalias i8* @malloc(i64 %B) nounwind
+ %D = bitcast i8* %C to %T*
+ store %T* %D, %T** @switch_inf, align 8
+ unreachable
+
+bb.nph.i:
+ %scevgep.i539 = getelementptr i8* %C, i64 4
+ unreachable
+
+xx:
+ %E = load %T** @switch_inf, align 8
+ unreachable
+}
+
+declare noalias i8* @malloc(i64) nounwind
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