mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-29 10:32:47 +00:00
b3833d1eb9
permutations of this pattern. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60312 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.1 KiB
LLVM
40 lines
1.1 KiB
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {and i32 %a, 1} | count 4
|
|
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {or i32 %0, %b} | count 4
|
|
|
|
|
|
define i32 @func1(i32 %a, i32 %b) nounwind readnone {
|
|
entry:
|
|
%0 = or i32 %b, %a ; <i32> [#uses=1]
|
|
%1 = and i32 %0, 1 ; <i32> [#uses=1]
|
|
%2 = and i32 %b, -2 ; <i32> [#uses=1]
|
|
%3 = or i32 %1, %2 ; <i32> [#uses=1]
|
|
ret i32 %3
|
|
}
|
|
|
|
define i32 @func2(i32 %a, i32 %b) nounwind readnone {
|
|
entry:
|
|
%0 = or i32 %a, %b ; <i32> [#uses=1]
|
|
%1 = and i32 1, %0 ; <i32> [#uses=1]
|
|
%2 = and i32 -2, %b ; <i32> [#uses=1]
|
|
%3 = or i32 %1, %2 ; <i32> [#uses=1]
|
|
ret i32 %3
|
|
}
|
|
|
|
define i32 @func3(i32 %a, i32 %b) nounwind readnone {
|
|
entry:
|
|
%0 = or i32 %b, %a ; <i32> [#uses=1]
|
|
%1 = and i32 %0, 1 ; <i32> [#uses=1]
|
|
%2 = and i32 %b, -2 ; <i32> [#uses=1]
|
|
%3 = or i32 %2, %1 ; <i32> [#uses=1]
|
|
ret i32 %3
|
|
}
|
|
|
|
define i32 @func4(i32 %a, i32 %b) nounwind readnone {
|
|
entry:
|
|
%0 = or i32 %a, %b ; <i32> [#uses=1]
|
|
%1 = and i32 1, %0 ; <i32> [#uses=1]
|
|
%2 = and i32 -2, %b ; <i32> [#uses=1]
|
|
%3 = or i32 %2, %1 ; <i32> [#uses=1]
|
|
ret i32 %3
|
|
}
|