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Speculatively revert r138809 in an attempt to fix DragonEgg.

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llvm-svn: 138829
This commit is contained in:
Owen Anderson 2011-08-30 21:11:06 +00:00
parent 569b9fee87
commit d3a9f00a58
2 changed files with 1 additions and 29 deletions
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3
lib/Transforms/Scalar/DeadStoreElimination.cpp
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@ -617,9 +617,8 @@ bool DSE::handleEndBlock(BasicBlock &BB) {
DeleteDeadInstruction(Dead, *MD, &DeadStackObjects);
++NumFastStores;
MadeChange = true;
continue;
}
continue;
}
// Remove any dead non-memory-mutating instructions.

27
test/Transforms/DeadStoreElimination/2011-08-30-EndOfFunction.ll
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@ -1,27 +0,0 @@
; RUN: opt -dse -S < %s | FileCheck %s
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-n8:16:32:64"
target triple = "x86_64-apple-darwin"
%"class.std::auto_ptr" = type { i32* }
; CHECK: @_Z3foov
define void @_Z3foov(%"class.std::auto_ptr"* noalias nocapture sret %agg.result) uwtable ssp {
_ZNSt8auto_ptrIiED1Ev.exit:
%temp.lvalue = alloca %"class.std::auto_ptr", align 8
call void @_Z3barv(%"class.std::auto_ptr"* sret %temp.lvalue)
%_M_ptr.i.i = getelementptr inbounds %"class.std::auto_ptr"* %temp.lvalue, i64 0, i32 0
%tmp.i.i = load i32** %_M_ptr.i.i, align 8, !tbaa !0
; CHECK-NOT: store i32* null
store i32* null, i32** %_M_ptr.i.i, align 8, !tbaa !0
%_M_ptr.i.i4 = getelementptr inbounds %"class.std::auto_ptr"* %agg.result, i64 0, i32 0
store i32* %tmp.i.i, i32** %_M_ptr.i.i4, align 8, !tbaa !0
; CHECK: ret void
ret void
}
declare void @_Z3barv(%"class.std::auto_ptr"* sret)
!0 = metadata !{metadata !"any pointer", metadata !1}
!1 = metadata !{metadata !"omnipotent char", metadata !2}
!2 = metadata !{metadata !"Simple C/C++ TBAA", null}