mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-30 19:29:20 +00:00
f2f6ce65b7
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
24 lines
791 B
LLVM
24 lines
791 B
LLVM
; Test that pure functions are cse'd away
|
|
; RUN: opt < %s -globalsmodref-aa -gvn -instcombine | \
|
|
; RUN: llvm-dis | not grep sub
|
|
|
|
define i32 @pure(i32 %X) {
|
|
%Y = add i32 %X, 1 ; <i32> [#uses=1]
|
|
ret i32 %Y
|
|
}
|
|
|
|
define i32 @test1(i32 %X) {
|
|
%A = call i32 @pure( i32 %X ) ; <i32> [#uses=1]
|
|
%B = call i32 @pure( i32 %X ) ; <i32> [#uses=1]
|
|
%C = sub i32 %A, %B ; <i32> [#uses=1]
|
|
ret i32 %C
|
|
}
|
|
|
|
define i32 @test2(i32 %X, i32* %P) {
|
|
%A = call i32 @pure( i32 %X ) ; <i32> [#uses=1]
|
|
store i32 %X, i32* %P ;; Does not invalidate 'pure' call.
|
|
%B = call i32 @pure( i32 %X ) ; <i32> [#uses=1]
|
|
%C = sub i32 %A, %B ; <i32> [#uses=1]
|
|
ret i32 %C
|
|
}
|