1 ; All of these ands and shifts should be folded into rlwimi's 2 ; RUN: llc < %s -march=ppc32 -o %t 3 ; RUN: grep rlwimi %t | count 4 4 ; RUN: not grep srwi %t 5 ; RUN: not grep slwi %t 6 7 define i16 @test1(i32 %srcA, i32 %srcB, i32 %alpha) nounwind { 8 entry: 9 %tmp.1 = shl i32 %srcA, 15 ; <i32> [#uses=1] 10 %tmp.4 = and i32 %tmp.1, 32505856 ; <i32> [#uses=1] 11 %tmp.6 = and i32 %srcA, 31775 ; <i32> [#uses=1] 12 %tmp.7 = or i32 %tmp.4, %tmp.6 ; <i32> [#uses=1] 13 %tmp.9 = shl i32 %srcB, 15 ; <i32> [#uses=1] 14 %tmp.12 = and i32 %tmp.9, 32505856 ; <i32> [#uses=1] 15 %tmp.14 = and i32 %srcB, 31775 ; <i32> [#uses=1] 16 %tmp.15 = or i32 %tmp.12, %tmp.14 ; <i32> [#uses=1] 17 %tmp.18 = mul i32 %tmp.7, %alpha ; <i32> [#uses=1] 18 %tmp.20 = sub i32 32, %alpha ; <i32> [#uses=1] 19 %tmp.22 = mul i32 %tmp.15, %tmp.20 ; <i32> [#uses=1] 20 %tmp.23 = add i32 %tmp.22, %tmp.18 ; <i32> [#uses=2] 21 %tmp.27 = lshr i32 %tmp.23, 5 ; <i32> [#uses=1] 22 %tmp.28 = trunc i32 %tmp.27 to i16 ; <i16> [#uses=1] 23 %tmp.29 = and i16 %tmp.28, 31775 ; <i16> [#uses=1] 24 %tmp.33 = lshr i32 %tmp.23, 20 ; <i32> [#uses=1] 25 %tmp.34 = trunc i32 %tmp.33 to i16 ; <i16> [#uses=1] 26 %tmp.35 = and i16 %tmp.34, 992 ; <i16> [#uses=1] 27 %tmp.36 = or i16 %tmp.29, %tmp.35 ; <i16> [#uses=1] 28 ret i16 %tmp.36 29 } 30
