llvm-6502/test/Transforms/DeadStoreElimination/const-pointers.ll
Dan Gohman aceba31b7a Delete useless trailing semicolons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92740 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 17:55:26 +00:00

40 lines
769 B
LLVM

; RUN: opt %s -dse -S | FileCheck %s
%t = type { i32 }
@g = global i32 42
define void @test1(%t* noalias %pp) {
%p = getelementptr inbounds %t* %pp, i32 0, i32 0
store i32 1, i32* %p; <-- This is dead
%x = load i32* inttoptr (i32 12345 to i32*)
store i32 %x, i32* %p
ret void
; CHECK: define void @test1
; CHECK: store
; CHECK-NOT: store
; CHECK: ret void
}
define void @test3() {
store i32 1, i32* @g; <-- This is dead.
store i32 42, i32* @g
ret void
; CHECK: define void @test3
; CHECK: store
; CHECK-NOT: store
; CHECK: ret void
}
define void @test4(i32* %p) {
store i32 1, i32* %p
%x = load i32* @g; <-- %p and @g could alias
store i32 %x, i32* %p
ret void
; CHECK: define void @test4
; CHECK: store
; CHECK: store
; CHECK: ret void
}