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bfbab99b58
Allow the "SplitCriticalEdge" function to split the edge to a landing pad. If the pass is *sure* that it thinks it knows what it's doing, then it may go ahead and specify that the landing pad can have its critical edge split. The loop unswitch pass is one of these passes. It will split the critical edges of all edges coming from a loop to a landing pad not within the loop. Doing so will retain important loop analysis information, such as loop simplify. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155817 91177308-0d34-0410-b5e6-96231b3b80d8
102 lines
4.4 KiB
LLVM
102 lines
4.4 KiB
LLVM
; RUN: opt < %s -basicaa -instcombine -inline -functionattrs -licm -loop-unswitch -gvn -verify
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; PR12573
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.7.0"
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%class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379 = type { %class.C.23.43.67.103.139.159.179.199.239.243.247.251.263.295.303.339.347.376*, %class.B.21.41.65.101.137.157.177.197.237.241.245.249.261.293.301.337.345.378 }
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%class.C.23.43.67.103.139.159.179.199.239.243.247.251.263.295.303.339.347.376 = type { %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* }
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%class.B.21.41.65.101.137.157.177.197.237.241.245.249.261.293.301.337.345.378 = type { %class.A.20.40.64.100.136.156.176.196.236.240.244.248.260.292.300.336.344.377* }
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%class.A.20.40.64.100.136.156.176.196.236.240.244.248.260.292.300.336.344.377 = type { i8 }
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define void @_Z23get_reconstruction_pathv() uwtable ssp {
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entry:
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%c = alloca %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379, align 8
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br label %for.cond
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for.cond: ; preds = %for.end, %entry
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invoke void @_ZN1DptEv(%class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %c)
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %for.cond
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invoke void @_ZN1C3endEv()
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to label %for.cond3 unwind label %lpad
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for.cond3: ; preds = %invoke.cont6, %invoke.cont
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invoke void @_ZN1DptEv(%class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %c)
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to label %invoke.cont4 unwind label %lpad
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invoke.cont4: ; preds = %for.cond3
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invoke void @_ZN1C3endEv()
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to label %invoke.cont6 unwind label %lpad
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invoke.cont6: ; preds = %invoke.cont4
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br i1 undef, label %for.cond3, label %for.end
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lpad: ; preds = %for.end, %invoke.cont4, %for.cond3, %invoke.cont, %for.cond
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
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cleanup
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resume { i8*, i32 } undef
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for.end: ; preds = %invoke.cont6
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invoke void @_ZN1C13_M_insert_auxER1D()
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to label %for.cond unwind label %lpad
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}
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define void @_ZN1DptEv(%class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %this) uwtable ssp align 2 {
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entry:
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%this.addr = alloca %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379*, align 8
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store %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %this, %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379** %this.addr, align 8, !tbaa !0
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%this1 = load %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379** %this.addr
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%px = getelementptr inbounds %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %this1, i32 0, i32 0
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%0 = load %class.C.23.43.67.103.139.159.179.199.239.243.247.251.263.295.303.339.347.376** %px, align 8, !tbaa !0
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%tobool = icmp ne %class.C.23.43.67.103.139.159.179.199.239.243.247.251.263.295.303.339.347.376* %0, null
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br i1 %tobool, label %cond.end, label %cond.false
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cond.false: ; preds = %entry
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call void @_Z10__assert13v() noreturn
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unreachable
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cond.end: ; preds = %entry
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ret void
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}
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declare i32 @__gxx_personality_v0(...)
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declare void @_ZN1C3endEv()
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define void @_ZN1C13_M_insert_auxER1D() uwtable ssp align 2 {
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entry:
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ret void
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}
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define void @_ZN1DD1Ev() unnamed_addr uwtable inlinehint ssp align 2 {
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entry:
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ret void
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}
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define void @_ZN1DD2Ev() unnamed_addr uwtable inlinehint ssp align 2 {
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entry:
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ret void
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}
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define void @_ZN1BD1Ev() unnamed_addr uwtable ssp align 2 {
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entry:
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ret void
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}
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define void @_ZN1BD2Ev() unnamed_addr uwtable ssp align 2 {
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entry:
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ret void
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}
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define void @_ZN1BaSERS_() uwtable ssp align 2 {
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entry:
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unreachable
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}
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declare void @_Z10__assert13v() noreturn
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!0 = metadata !{metadata !"any pointer", metadata !1}
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!1 = metadata !{metadata !"omnipotent char", metadata !2}
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!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
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