llvm-6502/test/Transforms/DeadArgElim/deadexternal.ll
Dmitri Gribenko b4912b9dcc Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID
This is done to avoid odd test failures, like the one fixed in r171243.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171246 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30 01:28:40 +00:00

53 lines
956 B
LLVM

; RUN: opt -deadargelim -S < %s | FileCheck %s
define void @test(i32) {
ret void
}
define void @foo() {
call void @test(i32 0)
ret void
; CHECK: @foo
; CHECK: i32 undef
}
define void @f(i32 %X) {
entry:
tail call void @sideeffect() nounwind
ret void
}
declare void @sideeffect()
define void @g(i32 %n) {
entry:
%add = add nsw i32 %n, 1
; CHECK: tail call void @f(i32 undef)
tail call void @f(i32 %add)
ret void
}
define void @h() {
entry:
%i = alloca i32, align 4
store volatile i32 10, i32* %i, align 4
; CHECK: %tmp = load volatile i32* %i, align 4
; CHECK-next: call void @f(i32 undef)
%tmp = load volatile i32* %i, align 4
call void @f(i32 %tmp)
ret void
}
; Check that callers are not transformed for weak definitions.
define weak i32 @weak_f(i32 %x) nounwind {
entry:
ret i32 0
}
define void @weak_f_caller() nounwind {
entry:
; CHECK: call i32 @weak_f(i32 10)
%call = tail call i32 @weak_f(i32 10)
ret void
}