mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
66d0884954
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12416 91177308-0d34-0410-b5e6-96231b3b80d8
14 lines
386 B
LLVM
14 lines
386 B
LLVM
; RUN: llvm-as < %s | opt -basicaa -load-vn -gcse -instcombine | llvm-dis | not grep sub
|
|
declare int %strlen(sbyte*)
|
|
declare void %use(int %X)
|
|
|
|
sbyte %test(sbyte* %P, sbyte* %Q) {
|
|
%A = load sbyte* %Q
|
|
%X = call int %strlen(sbyte* %P)
|
|
%B = load sbyte* %Q ;; CSE with A.
|
|
call void %use(int %X) ;; make strlen not dead
|
|
|
|
%C = sub sbyte %A, %B
|
|
ret sbyte %C
|
|
}
|