llvm-6502/test/Transforms/DeadStoreElimination/2008-11-28-MemDepUpdate.ll
Chris Lattner d3d12ecadd Fix PR3141 by ensuring that MemoryDependenceAnalysis::removeInstruction
properly updates the reverse dependency map when it installs updated 
dependencies for instructions that depend on the removed instruction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60222 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28 22:51:08 +00:00

17 lines
993 B
LLVM

; RUN: llvm-as < %s | opt -dse | llvm-dis
; PR3141
%struct.ada__tags__dispatch_table = type { [1 x i32] }
%struct.f393a00_1__object = type { %struct.ada__tags__dispatch_table*, i8 }
%struct.f393a00_2__windmill = type { %struct.f393a00_1__object, i16 }
define void @f393a00_2__swap(%struct.f393a00_2__windmill* %a, %struct.f393a00_2__windmill* %b) {
entry:
%t = alloca %struct.f393a00_2__windmill ; <%struct.f393a00_2__windmill*> [#uses=1]
%0 = getelementptr %struct.f393a00_2__windmill* %t, i32 0, i32 0, i32 0 ; <%struct.ada__tags__dispatch_table**> [#uses=1]
%1 = load %struct.ada__tags__dispatch_table** null, align 4 ; <%struct.ada__tags__dispatch_table*> [#uses=1]
%2 = load %struct.ada__tags__dispatch_table** %0, align 8 ; <%struct.ada__tags__dispatch_table*> [#uses=1]
store %struct.ada__tags__dispatch_table* %2, %struct.ada__tags__dispatch_table** null, align 4
store %struct.ada__tags__dispatch_table* %1, %struct.ada__tags__dispatch_table** null, align 4
ret void
}