1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-01 16:33:37 +01:00
llvm-mirror/test/Transforms/DeadArgElim/2008-06-23-DeadAfterLive.ll
Dan Gohman 205b641954 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

24 lines
632 B
LLVM

; RUN: opt < %s -deadargelim -die -S > %t
; RUN: cat %t | grep 123
; This test tries to catch wrongful removal of return values for a specific case
; that was break llvm-gcc builds.
; This function has a live return value, it is used by @alive.
define internal i32 @test5() {
ret i32 123
}
; This function doesn't use the return value @test5 and tries to lure DAE into
; marking @test5's return value dead because only this call is unused.
define i32 @dead() {
%DEAD = call i32 @test5()
ret i32 0
}
; This function ensures the retval of @test5 is live.
define i32 @alive() {
%LIVE = call i32 @test5()
ret i32 %LIVE
}