; RUN: llc < %s -mtriple=armv4t--linux-androideabi -print-machineinstrs=if-converter -o /dev/null 2>&1 | FileCheck %s ; Fix a bug triggered in IfConverterTriangle when CvtBB has multiple ; predecessors. ; PR18752 %classK = type { i8, %classF } %classF = type { i8 } %classL = type { %classG, i32, i32 } %classG = type { %classL* } %classM2 = type { %classL } define zeroext i1 @test(%classK* %this, %classM2* nocapture readnone %p1, %classM2* nocapture readnone %p2) align 2 { entry: br i1 undef, label %for.end, label %for.body ; Before if conversion, we have ; for.body -> lor.lhs.false.i (50%) ; -> for.cond.backedge (50%) ; lor.lhs.false.i -> for.cond.backedge (100%) ; -> cond.false.i (0%) ; Afer if conversion, we have ; for.body -> for.cond.backedge (100%) ; -> cond.false.i (0%) ; CHECK: BB#1: derived from LLVM BB %for.body ; CHECK: Successors according to CFG: BB#2(0x7ffffc00 / 0x80000000 = 100.00%) BB#4(0x00000400 / 0x80000000 = 0.00%) for.body: br i1 undef, label %for.cond.backedge, label %lor.lhs.false.i, !prof !1 for.cond.backedge: %tobool = icmp eq %classL* undef, null br i1 %tobool, label %for.end, label %for.body lor.lhs.false.i: %tobool.i.i7 = icmp eq i32 undef, 0 br i1 %tobool.i.i7, label %for.cond.backedge, label %cond.false.i cond.false.i: call void @_Z3fn1v() unreachable for.end: br i1 undef, label %if.else.i.i, label %if.then.i.i if.then.i.i: store %classL* null, %classL** undef, align 4 br label %_ZN1M6spliceEv.exit if.else.i.i: store %classL* null, %classL** null, align 4 br label %_ZN1M6spliceEv.exit _ZN1M6spliceEv.exit: %LIS = getelementptr inbounds %classK, %classK* %this, i32 0, i32 1 call void @_ZN1F10handleMoveEb(%classF* %LIS, i1 zeroext false) unreachable } declare %classL* @_ZN1M1JI1LS1_EcvPS1_Ev(%classM2*) declare void @_ZN1F10handleMoveEb(%classF*, i1 zeroext) declare void @_Z3fn1v() !0 = !{!"clang version 3.5"} !1 = !{!"branch_weights", i32 62, i32 62}