6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-26 10:29:36 +00:00
Code Issues Projects Releases Wiki Activity

Add a test for the "swap idiom", which LLVM should be able to unravel.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11491 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-02-16 03:53:44 +00:00
parent c317d39887
commit 72695f7bb7
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
test/Transforms/InstCombine/xor.ll
View File

@ -3,6 +3,9 @@
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep 'xor '
%G1 = global uint 0
%G2 = global uint 0
implementation
bool %test0(bool %A) {
@ -128,3 +131,14 @@ uint %test19(uint %A, uint %B) {
%D = xor uint %C, %A ; A terms cancel, D = B
ret uint %D
}
void %test20(uint %A, uint %B) { ; The "swap idiom"
%tmp.2 = xor uint %B, %A
%tmp.5 = xor uint %tmp.2, %B
%tmp.8 = xor uint %tmp.5, %tmp.2
store uint %tmp.8, uint* %G1 ; tmp.8 = B
store uint %tmp.5, uint* %G2 ; tmp.5 = A
ret void
}