mirror of
https://github.com/RPCSX/llvm.git
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45b7d44c62
Summary: LLVM's non-standard notion of phi nodes means we can't both try to substitute for undef in phi nodes *and* use phi nodes as leaders all the time. This changes NewGVN to use the same semantics as SimplifyPHINode to decide which phi nodes are equivalent. Reviewers: davide Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D28312 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291308 91177308-0d34-0410-b5e6-96231b3b80d8
137 lines
7.4 KiB
LLVM
137 lines
7.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -basicaa -newgvn -S | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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%struct.foo = type { %struct.wombat.28*, %struct.zot, %struct.wombat.28* }
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%struct.zot = type { i64 }
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%struct.barney = type <{ %struct.wombat.28*, %struct.wibble, %struct.snork, %struct.quux.4, %struct.snork.10, %struct.ham.16*, %struct.wobble.23*, i32, i8, i8, [2 x i8] }>
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%struct.wibble = type { %struct.pluto, %struct.bar }
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%struct.pluto = type { %struct.quux }
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%struct.quux = type { %struct.eggs }
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%struct.eggs = type { %struct.zot.0, %struct.widget }
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%struct.zot.0 = type { i8*, i8*, i8* }
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%struct.widget = type { %struct.barney.1 }
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%struct.barney.1 = type { [8 x i8] }
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%struct.bar = type { [3 x %struct.widget] }
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%struct.snork = type <{ %struct.wobble, %struct.bar.3, [7 x i8] }>
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%struct.wobble = type { %struct.wombat }
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%struct.wombat = type { %struct.zot.2 }
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%struct.zot.2 = type { %struct.zot.0, %struct.ham }
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%struct.ham = type { %struct.barney.1 }
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%struct.bar.3 = type { i8 }
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%struct.quux.4 = type <{ %struct.quux.5, %struct.snork.9, [7 x i8] }>
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%struct.quux.5 = type { %struct.widget.6 }
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%struct.widget.6 = type { %struct.spam }
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%struct.spam = type { %struct.zot.0, %struct.ham.7 }
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%struct.ham.7 = type { %struct.barney.8 }
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%struct.barney.8 = type { [24 x i8] }
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%struct.snork.9 = type { i8 }
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%struct.snork.10 = type <{ %struct.foo.11, %struct.spam.15, [7 x i8] }>
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%struct.foo.11 = type { %struct.snork.12 }
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%struct.snork.12 = type { %struct.wombat.13 }
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%struct.wombat.13 = type { %struct.zot.0, %struct.wibble.14 }
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%struct.wibble.14 = type { %struct.barney.8 }
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%struct.spam.15 = type { i8 }
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%struct.ham.16 = type { %struct.pluto.17, %struct.pluto.17 }
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%struct.pluto.17 = type { %struct.bar.18 }
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%struct.bar.18 = type { %struct.baz*, %struct.zot.20, %struct.barney.22 }
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%struct.baz = type { %struct.wibble.19* }
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%struct.wibble.19 = type <{ %struct.baz, %struct.wibble.19*, %struct.baz*, i8, [7 x i8] }>
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%struct.zot.20 = type { %struct.ham.21 }
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%struct.ham.21 = type { %struct.baz }
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%struct.barney.22 = type { %struct.blam }
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%struct.blam = type { i64 }
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%struct.wobble.23 = type { %struct.spam.24, %struct.barney* }
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%struct.spam.24 = type { %struct.bar.25, %struct.zot.26* }
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%struct.bar.25 = type <{ i32 (...)**, i8, i8 }>
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%struct.zot.26 = type { i32 (...)**, i32, %struct.widget.27* }
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%struct.widget.27 = type { %struct.zot.26, %struct.zot.26* }
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%struct.wombat.28 = type <{ i32 (...)**, i8, i8, [6 x i8] }>
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; Function Attrs: norecurse nounwind ssp uwtable
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define weak_odr hidden %struct.foo* @quux(%struct.barney* %arg, %struct.wombat.28* %arg1) local_unnamed_addr #0 align 2 {
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; CHECK-LABEL: @quux(
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[TMP:%.*]] = getelementptr inbounds %struct.barney, %struct.barney* %arg, i64 0, i32 3, i32 0, i32 0, i32 0
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; CHECK-NEXT: [[TMP2:%.*]] = bitcast %struct.spam* [[TMP]] to %struct.foo**
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; CHECK-NEXT: [[TMP3:%.*]] = load %struct.foo*, %struct.foo** [[TMP2]], align 8, !tbaa !2
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; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds %struct.barney, %struct.barney* %arg, i64 0, i32 3, i32 0, i32 0, i32 0, i32 0, i32 1
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; CHECK-NEXT: [[TMP5:%.*]] = bitcast i8** [[TMP4]] to %struct.foo**
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; CHECK-NEXT: [[TMP6:%.*]] = load %struct.foo*, %struct.foo** [[TMP5]], align 8, !tbaa !7
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; CHECK-NEXT: [[TMP7:%.*]] = icmp eq %struct.foo* [[TMP3]], [[TMP6]]
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; CHECK-NEXT: br i1 [[TMP7]], label %bb21, label %bb8
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; CHECK: bb8:
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; CHECK-NEXT: br label %bb11
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; CHECK: bb9:
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; CHECK-NEXT: [[TMP10:%.*]] = icmp eq %struct.foo* [[TMP18:%.*]], [[TMP6]]
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; CHECK-NEXT: br i1 [[TMP10]], label %bb19, label %bb11
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; CHECK: bb11:
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; CHECK-NEXT: [[TMP12:%.*]] = phi %struct.foo* [ [[TMP17:%.*]], %bb9 ], [ undef, %bb8 ]
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; CHECK-NEXT: [[TMP13:%.*]] = phi %struct.foo* [ [[TMP18]], %bb9 ], [ [[TMP3]], %bb8 ]
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; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds %struct.foo, %struct.foo* [[TMP13]], i64 0, i32 0
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; CHECK-NEXT: [[TMP15:%.*]] = load %struct.wombat.28*, %struct.wombat.28** [[TMP14]], align 8, !tbaa !8
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; CHECK-NEXT: [[TMP16:%.*]] = icmp eq %struct.wombat.28* [[TMP15]], %arg1
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; CHECK-NEXT: [[TMP17]] = select i1 [[TMP16]], %struct.foo* [[TMP13]], %struct.foo* [[TMP12]]
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; CHECK-NEXT: [[TMP18]] = getelementptr inbounds %struct.foo, %struct.foo* [[TMP13]], i64 1
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; CHECK-NEXT: br i1 [[TMP16]], label %bb19, label %bb9
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; CHECK: bb19:
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; CHECK-NEXT: [[TMP20:%.*]] = phi %struct.foo* [ null, %bb9 ], [ [[TMP17]], %bb11 ]
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; CHECK-NEXT: br label %bb21
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; CHECK: bb21:
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; CHECK-NEXT: [[TMP22:%.*]] = phi %struct.foo* [ null, %bb ], [ [[TMP20]], %bb19 ]
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; CHECK-NEXT: ret %struct.foo* [[TMP22]]
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;
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bb:
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%tmp = getelementptr inbounds %struct.barney, %struct.barney* %arg, i64 0, i32 3, i32 0, i32 0, i32 0
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%tmp2 = bitcast %struct.spam* %tmp to %struct.foo**
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%tmp3 = load %struct.foo*, %struct.foo** %tmp2, align 8, !tbaa !2
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%tmp4 = getelementptr inbounds %struct.barney, %struct.barney* %arg, i64 0, i32 3, i32 0, i32 0, i32 0, i32 0, i32 1
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%tmp5 = bitcast i8** %tmp4 to %struct.foo**
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%tmp6 = load %struct.foo*, %struct.foo** %tmp5, align 8, !tbaa !7
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%tmp7 = icmp eq %struct.foo* %tmp3, %tmp6
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br i1 %tmp7, label %bb21, label %bb8
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bb8: ; preds = %bb
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br label %bb11
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bb9: ; preds = %bb11
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%tmp10 = icmp eq %struct.foo* %tmp18, %tmp6
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br i1 %tmp10, label %bb19, label %bb11
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bb11: ; preds = %bb9, %bb8
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%tmp12 = phi %struct.foo* [ %tmp17, %bb9 ], [ undef, %bb8 ]
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%tmp13 = phi %struct.foo* [ %tmp18, %bb9 ], [ %tmp3, %bb8 ]
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%tmp14 = getelementptr inbounds %struct.foo, %struct.foo* %tmp13, i64 0, i32 0
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%tmp15 = load %struct.wombat.28*, %struct.wombat.28** %tmp14, align 8, !tbaa !8
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%tmp16 = icmp eq %struct.wombat.28* %tmp15, %arg1
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%tmp17 = select i1 %tmp16, %struct.foo* %tmp13, %struct.foo* %tmp12
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%tmp18 = getelementptr inbounds %struct.foo, %struct.foo* %tmp13, i64 1
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br i1 %tmp16, label %bb19, label %bb9
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bb19: ; preds = %bb11, %bb9
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%tmp20 = phi %struct.foo* [ null, %bb9 ], [ %tmp17, %bb11 ]
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br label %bb21
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bb21: ; preds = %bb19, %bb
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%tmp22 = phi %struct.foo* [ null, %bb ], [ %tmp20, %bb19 ]
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ret %struct.foo* %tmp22
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}
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attributes #0 = { norecurse nounwind ssp uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="penryn" "target-features"="+cx16,+fxsr,+mmx,+sse,+sse2,+sse3,+sse4.1,+ssse3,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.module.flags = !{!0}
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!llvm.ident = !{!1}
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!0 = !{i32 1, !"PIC Level", i32 2}
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!1 = !{!"clang version 4.0.0 (http://llvm.org/git/clang.git b63fa9e2bb8aac0a80c3e3467991c6b1a4b01e6a) (llvm/trunk 290779)"}
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!2 = !{!3, !4, i64 0}
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!3 = !{!"_ZTSN4llvm15SmallVectorBaseE", !4, i64 0, !4, i64 8, !4, i64 16}
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!4 = !{!"any pointer", !5, i64 0}
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!5 = !{!"omnipotent char", !6, i64 0}
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!6 = !{!"Simple C++ TBAA"}
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!7 = !{!3, !4, i64 8}
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!8 = !{!9, !4, i64 0}
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!9 = !{!"_ZTSN4llvm9RecordValE", !4, i64 0, !10, i64 8, !4, i64 16}
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!10 = !{!"_ZTSN4llvm14PointerIntPairIPNS_5RecTyELj1EbNS_21PointerLikeTypeTraitsIS2_EENS_18PointerIntPairInfoIS2_Lj1ES4_EEEE", !11, i64 0}
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!11 = !{!"long", !5, i64 0}
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