llvm-6502/test/Transforms/InstCombine/and-or.ll

40 lines
1.0 KiB
LLVM
Raw Normal View History

; RUN: opt < %s -instcombine -S | grep "and i32 %a, 1" | count 4
; RUN: opt < %s -instcombine -S | 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
}