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Add testcases for GlobalOpt changes in r160693 and r160757. 

llvm-svn: 160925
This commit is contained in:
Nick Lewycky 2012-07-29 01:15:37 +00:00
parent f86b0ae196
commit d2c3bdd269
1 changed files with 33 additions and 3 deletions
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36
llvm/test/Transforms/GlobalOpt/cleanup-pointer-root-users.ll
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@ -1,12 +1,12 @@
; RUN: opt -globalopt -S -o - < %s | FileCheck %s
@test1 = internal global i8* null
@glbl = internal global i8* null
define void @test1a() {
; CHECK: @test1a
; CHECK-NOT: store
; CHECK-NEXT: ret void
store i8* null, i8** @test1
store i8* null, i8** @glbl
ret void
}
@ -14,6 +14,36 @@ define void @test1b(i8* %p) {
; CHECK: @test1b
; CHECK-NEXT: store
; CHECK-NEXT: ret void
store i8* %p, i8** @test1
store i8* %p, i8** @glbl
ret void
}
define void @test2() {
; CHECK: @test2
; CHECK: alloca i8
%txt = alloca i8
call void @foo2(i8* %txt)
%call2 = call i8* @strdup(i8* %txt)
store i8* %call2, i8** @glbl
ret void
}
declare i8* @strdup(i8*)
declare void @foo2(i8*)
define void @test3() uwtable {
; CHECK: @test3
; CHECK-NOT: bb1:
; CHECK-NOT: bb2:
; CHECK: invoke
%ptr = invoke i8* @_Znwm(i64 1)
to label %bb1 unwind label %bb2
bb1:
store i8* %ptr, i8** @glbl
unreachable
bb2:
%tmp1 = landingpad { i8*, i32 } personality i32 (i32, i64, i8*, i8*)* @__gxx_personality_v0
cleanup
resume { i8*, i32 } %tmp1
}
declare i32 @__gxx_personality_v0(i32, i64, i8*, i8*)
declare i8* @_Znwm(i64)