1; All of these ands and shifts should be folded into rlwimi's 2; RUN: llc < %s -march=ppc32 -o %t 3; RUN: not grep and %t 4; RUN: not grep srawi %t 5; RUN: not grep srwi %t 6; RUN: not grep slwi %t 7; RUN: grep rlwinm %t | count 8 8 9define i32 @test1(i32 %a) { 10entry: 11 %tmp.1 = and i32 %a, 268431360 ; <i32> [#uses=1] 12 ret i32 %tmp.1 13} 14 15define i32 @test2(i32 %a) { 16entry: 17 %tmp.1 = and i32 %a, -268435441 ; <i32> [#uses=1] 18 ret i32 %tmp.1 19} 20 21define i32 @test3(i32 %a) { 22entry: 23 %tmp.2 = ashr i32 %a, 8 ; <i32> [#uses=1] 24 %tmp.3 = and i32 %tmp.2, 255 ; <i32> [#uses=1] 25 ret i32 %tmp.3 26} 27 28define i32 @test4(i32 %a) { 29entry: 30 %tmp.3 = lshr i32 %a, 8 ; <i32> [#uses=1] 31 %tmp.4 = and i32 %tmp.3, 255 ; <i32> [#uses=1] 32 ret i32 %tmp.4 33} 34 35define i32 @test5(i32 %a) { 36entry: 37 %tmp.2 = shl i32 %a, 8 ; <i32> [#uses=1] 38 %tmp.3 = and i32 %tmp.2, -8388608 ; <i32> [#uses=1] 39 ret i32 %tmp.3 40} 41 42define i32 @test6(i32 %a) { 43entry: 44 %tmp.1 = and i32 %a, 65280 ; <i32> [#uses=1] 45 %tmp.2 = ashr i32 %tmp.1, 8 ; <i32> [#uses=1] 46 ret i32 %tmp.2 47} 48 49define i32 @test7(i32 %a) { 50entry: 51 %tmp.1 = and i32 %a, 65280 ; <i32> [#uses=1] 52 %tmp.2 = lshr i32 %tmp.1, 8 ; <i32> [#uses=1] 53 ret i32 %tmp.2 54} 55 56define i32 @test8(i32 %a) { 57entry: 58 %tmp.1 = and i32 %a, 16711680 ; <i32> [#uses=1] 59 %tmp.2 = shl i32 %tmp.1, 8 ; <i32> [#uses=1] 60 ret i32 %tmp.2 61} 62