; RUN: llc -march=hexagon -hexagon-expand-condsets=0 < %s | FileCheck %s ; ; Expand-condsets eliminates the "mux" instruction, which is what this ; testcase is checking. %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 } %struct._Mbstatet.0 = type { i32, i16, i16 } @_Stdout = external global %struct._Dnk_filet.1 @.str = external unnamed_addr constant [23 x i8], align 8 ; Test that we don't generate a new value compare if the operands are ; the same register. ; CHECK-NOT: cmp.eq([[REG0:(r[0-9]+)]].new,[[REG0]]) ; CHECK: cmp.eq([[REG1:(r[0-9]+)]],[[REG1]]) ; Function Attrs: nounwind declare void @fprintf(%struct._Dnk_filet.1* nocapture, i8* nocapture readonly, ...) #1 define void @main() #0 { entry: %0 = load i32*, i32** undef, align 4 %1 = load i32, i32* undef, align 4 br i1 undef, label %if.end, label %_ZNSt6vectorIbSaIbEE3endEv.exit _ZNSt6vectorIbSaIbEE3endEv.exit: %2 = icmp slt i32 %1, 0 %sub5.i.i.i = lshr i32 %1, 5 %add619.i.i.i = add i32 %sub5.i.i.i, -134217728 %sub5.i.pn.i.i = select i1 %2, i32 %add619.i.i.i, i32 %sub5.i.i.i %storemerge2.i.i = getelementptr inbounds i32, i32* %0, i32 %sub5.i.pn.i.i %cmp.i.i = icmp ult i32* %storemerge2.i.i, %0 %.mux = select i1 %cmp.i.i, i32 0, i32 1 br i1 undef, label %_ZNSt6vectorIbSaIbEE3endEv.exit57, label %if.end _ZNSt6vectorIbSaIbEE3endEv.exit57: %3 = icmp slt i32 %1, 0 %sub5.i.i.i44 = lshr i32 %1, 5 %add619.i.i.i45 = add i32 %sub5.i.i.i44, -134217728 %sub5.i.pn.i.i46 = select i1 %3, i32 %add619.i.i.i45, i32 %sub5.i.i.i44 %storemerge2.i.i47 = getelementptr inbounds i32, i32* %0, i32 %sub5.i.pn.i.i46 %cmp.i38 = icmp ult i32* %storemerge2.i.i47, %0 %.reg2mem.sroa.0.sroa.0.0.load14.i.reload = select i1 %cmp.i38, i32 0, i32 1 %cmp = icmp eq i32 %.mux, %.reg2mem.sroa.0.sroa.0.0.load14.i.reload br i1 %cmp, label %if.end, label %if.then if.then: 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 unreachable if.end: br i1 undef, label %_ZNSt6vectorIbSaIbEED2Ev.exit, label %if.then.i.i.i if.then.i.i.i: unreachable _ZNSt6vectorIbSaIbEED2Ev.exit: ret void } attributes #0 = { "target-cpu"="hexagonv5" } attributes #1 = { nounwind "target-cpu"="hexagonv5" }