xref: /llvm-project/llvm/test/CodeGen/PowerPC/rlwinm2.ll (revision 357d6362891e057e8fc721bcf76917723f996a40)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; All of these ands and shifts should be folded into rlw[i]nm instructions
3; RUN: llc < %s -verify-machineinstrs -mtriple=ppc32-- | FileCheck %s
4
5define i32 @test1(i32 %X, i32 %Y) {
6; CHECK-LABEL: test1:
7; CHECK:       # %bb.0: # %entry
8; CHECK-NEXT:    rlwnm 3, 3, 4, 25, 31
9; CHECK-NEXT:    blr
10entry:
11	%tmp = trunc i32 %Y to i8		; <i8> [#uses=2]
12	%tmp1 = shl i32 %X, %Y		; <i32> [#uses=1]
13	%tmp2 = sub i32 32, %Y		; <i8> [#uses=1]
14	%tmp3 = lshr i32 %X, %tmp2		; <i32> [#uses=1]
15	%tmp4 = or i32 %tmp1, %tmp3		; <i32> [#uses=1]
16	%tmp6 = and i32 %tmp4, 127		; <i32> [#uses=1]
17	ret i32 %tmp6
18}
19
20define i32 @test2(i32 %X) {
21; CHECK-LABEL: test2:
22; CHECK:       # %bb.0: # %entry
23; CHECK-NEXT:    rlwinm 3, 3, 5, 25, 31
24; CHECK-NEXT:    blr
25entry:
26	%tmp1 = lshr i32 %X, 27		; <i32> [#uses=1]
27	%tmp2 = shl i32 %X, 5		; <i32> [#uses=1]
28	%tmp2.masked = and i32 %tmp2, 96		; <i32> [#uses=1]
29	%tmp5 = or i32 %tmp1, %tmp2.masked		; <i32> [#uses=1]
30	ret i32 %tmp5
31}
32