1 ; RUN: llc -march=hexagon -hexagon-expand-condsets=0 < %s | FileCheck %s 2 ; 3 ; Expand-condsets eliminates the "mux" instruction, which is what this 4 ; testcase is checking. 5 6 %struct._Dnk_filet.1 = type { i16, i8, i32, i8*, i8*, i8*, i8*, i8*, i8*, i32*, [2 x i32], i8*, i8*, i8*, %struct._Mbstatet.0, i8*, [8 x i8], i8 } 7 %struct._Mbstatet.0 = type { i32, i16, i16 } 8 9 @_Stdout = external global %struct._Dnk_filet.1 10 @.str = external unnamed_addr constant [23 x i8], align 8 11 12 ; Test that we don't generate a new value compare if the operands are 13 ; the same register. 14 15 ; CHECK-NOT: cmp.eq([[REG0:(r[0-9]+)]].new,[[REG0]]) 16 ; CHECK: cmp.eq([[REG1:(r[0-9]+)]],[[REG1]]) 17 18 ; Function Attrs: nounwind 19 declare void @fprintf(%struct._Dnk_filet.1* nocapture, i8* nocapture readonly, ...) #1 20 21 define void @main() #0 { 22 entry: 23 %0 = load i32*, i32** undef, align 4 24 %1 = load i32, i32* undef, align 4 25 br i1 undef, label %if.end, label %_ZNSt6vectorIbSaIbEE3endEv.exit 26 27 _ZNSt6vectorIbSaIbEE3endEv.exit: 28 %2 = icmp slt i32 %1, 0 29 %sub5.i.i.i = lshr i32 %1, 5 30 %add619.i.i.i = add i32 %sub5.i.i.i, -134217728 31 %sub5.i.pn.i.i = select i1 %2, i32 %add619.i.i.i, i32 %sub5.i.i.i 32 %storemerge2.i.i = getelementptr inbounds i32, i32* %0, i32 %sub5.i.pn.i.i 33 %cmp.i.i = icmp ult i32* %storemerge2.i.i, %0 34 %.mux = select i1 %cmp.i.i, i32 0, i32 1 35 br i1 undef, label %_ZNSt6vectorIbSaIbEE3endEv.exit57, label %if.end 36 37 _ZNSt6vectorIbSaIbEE3endEv.exit57: 38 %3 = icmp slt i32 %1, 0 39 %sub5.i.i.i44 = lshr i32 %1, 5 40 %add619.i.i.i45 = add i32 %sub5.i.i.i44, -134217728 41 %sub5.i.pn.i.i46 = select i1 %3, i32 %add619.i.i.i45, i32 %sub5.i.i.i44 42 %storemerge2.i.i47 = getelementptr inbounds i32, i32* %0, i32 %sub5.i.pn.i.i46 43 %cmp.i38 = icmp ult i32* %storemerge2.i.i47, %0 44 %.reg2mem.sroa.0.sroa.0.0.load14.i.reload = select i1 %cmp.i38, i32 0, i32 1 45 %cmp = icmp eq i32 %.mux, %.reg2mem.sroa.0.sroa.0.0.load14.i.reload 46 br i1 %cmp, label %if.end, label %if.then 47 48 if.then: 49 call void (%struct._Dnk_filet.1*, i8*, ...) @fprintf(%struct._Dnk_filet.1* @_Stdout, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0), i32 %.mux, i32 %.reg2mem.sroa.0.sroa.0.0.load14.i.reload) #1 50 unreachable 51 52 if.end: 53 br i1 undef, label %_ZNSt6vectorIbSaIbEED2Ev.exit, label %if.then.i.i.i 54 55 if.then.i.i.i: 56 unreachable 57 58 _ZNSt6vectorIbSaIbEED2Ev.exit: 59 ret void 60 } 61 62 attributes #0 = { "target-cpu"="hexagonv5" } 63 attributes #1 = { nounwind "target-cpu"="hexagonv5" } 64