llvm/test/Transforms/SRETPromotion/basictest.ll
Dan Gohman f2f6ce65b7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

34 lines
993 B
LLVM

; RUN: opt < %s -sretpromotion -S > %t
; RUN: cat %t | grep sret | count 1
; This function is promotable
define internal void @promotable({i32, i32}* sret %s) {
%A = getelementptr {i32, i32}* %s, i32 0, i32 0
store i32 0, i32* %A
%B = getelementptr {i32, i32}* %s, i32 0, i32 0
store i32 1, i32* %B
ret void
}
; This function is not promotable (due to it's use below)
define internal void @notpromotable({i32, i32}* sret %s) {
%A = getelementptr {i32, i32}* %s, i32 0, i32 0
store i32 0, i32* %A
%B = getelementptr {i32, i32}* %s, i32 0, i32 0
store i32 1, i32* %B
ret void
}
define void @caller({i32, i32}* %t) {
%s = alloca {i32, i32}
call void @promotable({i32, i32}* %s)
%A = getelementptr {i32, i32}* %s, i32 0, i32 0
%a = load i32* %A
%B = getelementptr {i32, i32}* %s, i32 0, i32 0
%b = load i32* %B
; This passes in something that's not an alloca, which makes the argument not
; promotable
call void @notpromotable({i32, i32}* %t)
ret void
}