mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-15 20:06:46 +00:00
9af7014019
In the simple and triangle if-conversion cases, when CopyAndPredicateBlock is used because the to-be-predicated block has other predecessors, we need to explicitly remove the old copied block from the successors list. Normally if conversion relies on TII->AnalyzeBranch combined with BB->CorrectExtraCFGEdges to cleanup the successors list, but if the predicated block contained an un-analyzable branch (such as a now-predicated return), then this will fail. These extra successors were causing a problem on PPC because it was causing later passes (such as PPCEarlyReturm) to leave dead return-only basic blocks in the code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179227 91177308-0d34-0410-b5e6-96231b3b80d8
65 lines
4.0 KiB
LLVM
65 lines
4.0 KiB
LLVM
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s
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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-f128:128:128-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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%struct.lua_TValue.17.692 = type { %union.Value.16.691, i32 }
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%union.Value.16.691 = type { %union.GCObject.15.690* }
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%union.GCObject.15.690 = type { %struct.lua_State.14.689 }
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%struct.lua_State.14.689 = type { %union.GCObject.15.690*, i8, i8, i8, %struct.lua_TValue.17.692*, %struct.lua_TValue.17.692*, %struct.global_State.10.685*, %struct.CallInfo.11.686*, i32*, %struct.lua_TValue.17.692*, %struct.lua_TValue.17.692*, %struct.CallInfo.11.686*, %struct.CallInfo.11.686*, i32, i32, i16, i16, i8, i8, i32, i32, void (%struct.lua_State.14.689*, %struct.lua_Debug.12.687*)*, %struct.lua_TValue.17.692, %struct.lua_TValue.17.692, %union.GCObject.15.690*, %union.GCObject.15.690*, %struct.lua_longjmp.13.688*, i64 }
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%struct.global_State.10.685 = type { %struct.stringtable.0.675, i8* (i8*, i8*, i64, i64)*, i8*, i8, i8, i32, %union.GCObject.15.690*, %union.GCObject.15.690**, %union.GCObject.15.690*, %union.GCObject.15.690*, %union.GCObject.15.690*, %union.GCObject.15.690*, %struct.Mbuffer.1.676, i64, i64, i64, i64, i32, i32, i32 (%struct.lua_State.14.689*)*, %struct.lua_TValue.17.692, %struct.lua_State.14.689*, %struct.UpVal.3.678, [9 x %struct.Table.7.682*], [17 x %union.TString.9.684*] }
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%struct.stringtable.0.675 = type { %union.GCObject.15.690**, i32, i32 }
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%struct.Mbuffer.1.676 = type { i8*, i64, i64 }
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%struct.UpVal.3.678 = type { %union.GCObject.15.690*, i8, i8, %struct.lua_TValue.17.692*, %union.anon.2.677 }
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%union.anon.2.677 = type { %struct.lua_TValue.17.692 }
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%struct.Table.7.682 = type { %union.GCObject.15.690*, i8, i8, i8, i8, %struct.Table.7.682*, %struct.lua_TValue.17.692*, %struct.Node.6.681*, %struct.Node.6.681*, %union.GCObject.15.690*, i32 }
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%struct.Node.6.681 = type { %struct.lua_TValue.17.692, %union.TKey.5.680 }
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%union.TKey.5.680 = type { %struct.anon.0.4.679 }
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%struct.anon.0.4.679 = type { %union.Value.16.691, i32, %struct.Node.6.681* }
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%union.TString.9.684 = type { %struct.anon.1.8.683 }
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%struct.anon.1.8.683 = type { %union.GCObject.15.690*, i8, i8, i8, i32, i64 }
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%struct.CallInfo.11.686 = type { %struct.lua_TValue.17.692*, %struct.lua_TValue.17.692*, %struct.lua_TValue.17.692*, i32*, i32, i32 }
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%struct.lua_Debug.12.687 = type { i32, i8*, i8*, i8*, i8*, i32, i32, i32, i32, [60 x i8], i32 }
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%struct.lua_longjmp.13.688 = type opaque
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define void @lua_xmove(i32 signext %n) #0 {
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entry:
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br i1 undef, label %for.end, label %if.end
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if.end: ; preds = %entry
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br i1 undef, label %for.body.lr.ph, label %for.end
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for.body.lr.ph: ; preds = %if.end
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br label %for.body
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for.body: ; preds = %for.body.for.body_crit_edge, %for.body.lr.ph
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%0 = phi %struct.lua_TValue.17.692* [ undef, %for.body.lr.ph ], [ %.pre, %for.body.for.body_crit_edge ]
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%indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body.for.body_crit_edge ]
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%tt = getelementptr inbounds %struct.lua_TValue.17.692* %0, i64 %indvars.iv, i32 1
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%1 = load i32* %tt, align 4, !tbaa !0
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store i32 %1, i32* undef, align 4, !tbaa !0
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%indvars.iv.next = add i64 %indvars.iv, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp eq i32 %lftr.wideiv, %n
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br i1 %exitcond, label %for.end, label %for.body.for.body_crit_edge
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for.body.for.body_crit_edge: ; preds = %for.body
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%.pre = load %struct.lua_TValue.17.692** undef, align 8, !tbaa !3
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br label %for.body
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for.end: ; preds = %for.body, %if.end, %entry
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ret void
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; CHECK: @lua_xmove
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; CHECK: bnelr
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; CHECK: bnelr
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; CHECK: bdzlr
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; CHECK-NOT: blr
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}
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attributes #0 = { nounwind }
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!0 = metadata !{metadata !"int", metadata !1}
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!1 = metadata !{metadata !"omnipotent char", metadata !2}
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!2 = metadata !{metadata !"Simple C/C++ TBAA"}
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!3 = metadata !{metadata !"any pointer", metadata !1}
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