1 ; All of these ands and shifts should be folded into rlw[i]nm instructions
2 ; RUN: llvm-as < %s | llc -march=ppc32 -o %t -f
4 ; RUN: not grep srawi %t
5 ; RUN: not grep srwi %t
6 ; RUN: not grep slwi %t
7 ; RUN: grep rlwnm %t | count 1
8 ; RUN: grep rlwinm %t | count 1
10 define i32 @test1(i32 %X, i32 %Y) {
12 %tmp = trunc i32 %Y to i8 ; <i8> [#uses=2]
13 %tmp1 = shl i32 %X, %Y ; <i32> [#uses=1]
14 %tmp2 = sub i32 32, %Y ; <i8> [#uses=1]
15 %tmp3 = lshr i32 %X, %tmp2 ; <i32> [#uses=1]
16 %tmp4 = or i32 %tmp1, %tmp3 ; <i32> [#uses=1]
17 %tmp6 = and i32 %tmp4, 127 ; <i32> [#uses=1]
21 define i32 @test2(i32 %X) {
23 %tmp1 = lshr i32 %X, 27 ; <i32> [#uses=1]
24 %tmp2 = shl i32 %X, 5 ; <i32> [#uses=1]
25 %tmp2.masked = and i32 %tmp2, 96 ; <i32> [#uses=1]
26 %tmp5 = or i32 %tmp1, %tmp2.masked ; <i32> [#uses=1]