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59f9149f4e
The MemorySSA-based implementation has been enabled without issue for a while now, so keeping the old implementation around doesn't seem useful anymore. This drops the MemDep-based implementation. Differential Revision: https://reviews.llvm.org/D97877
72 lines
2.8 KiB
LLVM
72 lines
2.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -dse -S %s | FileCheck %s
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declare i8* @_Znwm() local_unnamed_addr #0
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; Function Attrs: argmemonly nounwind willreturn writeonly
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declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) #1
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define void @test1(i1 %c) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[C:%.*]], label [[COND_TRUE_I_I_I:%.*]], label [[COND_END_I_I_I:%.*]]
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; CHECK: cond.true.i.i.i:
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; CHECK-NEXT: ret void
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; CHECK: cond.end.i.i.i:
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; CHECK-NEXT: [[CALL_I_I_I_I_I:%.*]] = tail call noalias nonnull i8* @_Znam()
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; CHECK-NEXT: [[TMP0:%.*]] = bitcast i8* [[CALL_I_I_I_I_I]] to i64*
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; CHECK-NEXT: tail call void @llvm.memset.p0i8.i64(i8* nonnull align 8 [[CALL_I_I_I_I_I]], i8 0, i64 undef, i1 false)
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; CHECK-NEXT: store i64 0, i64* [[TMP0]], align 8
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; CHECK-NEXT: ret void
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;
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entry:
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br i1 %c, label %cond.true.i.i.i, label %cond.end.i.i.i
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cond.true.i.i.i: ; preds = %entry
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ret void
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cond.end.i.i.i: ; preds = %entry
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%call.i.i.i.i.i = tail call noalias nonnull i8* @_Znam() #2
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%0 = bitcast i8* %call.i.i.i.i.i to i64*
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tail call void @llvm.memset.p0i8.i64(i8* nonnull align 8 %call.i.i.i.i.i, i8 0, i64 undef, i1 false) #3
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store i64 0, i64* %0, align 8
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ret void
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}
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declare i8* @_Znam() local_unnamed_addr #0
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define void @test2(i1 %c) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[C:%.*]], label [[CLEANUP_CONT104:%.*]], label [[IF_THEN:%.*]]
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; CHECK: if.then:
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; CHECK-NEXT: [[MUL_I_I_I_I:%.*]] = shl nuw nsw i64 undef, 3
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; CHECK-NEXT: [[CALL_I_I_I_I_I_I131:%.*]] = call noalias nonnull i8* @_Znwm()
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; CHECK-NEXT: [[DOTCAST_I_I:%.*]] = bitcast i8* [[CALL_I_I_I_I_I_I131]] to i64*
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; CHECK-NEXT: store i64 0, i64* [[DOTCAST_I_I]], align 8
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; CHECK-NEXT: call void @llvm.memset.p0i8.i64(i8* nonnull align 8 [[CALL_I_I_I_I_I_I131]], i8 0, i64 [[MUL_I_I_I_I]], i1 false)
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; CHECK-NEXT: ret void
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; CHECK: cleanup.cont104:
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; CHECK-NEXT: ret void
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;
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entry:
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br i1 %c, label %cleanup.cont104, label %if.then
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if.then: ; preds = %entry
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%mul.i.i.i.i = shl nuw nsw i64 undef, 3
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%call.i.i.i.i.i.i131 = call noalias nonnull i8* @_Znwm() #2
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%.cast.i.i = bitcast i8* %call.i.i.i.i.i.i131 to i64*
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store i64 0, i64* %.cast.i.i, align 8
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call void @llvm.memset.p0i8.i64(i8* nonnull align 8 %call.i.i.i.i.i.i131, i8 0, i64 %mul.i.i.i.i, i1 false) #3
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ret void
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cleanup.cont104: ; preds = %entry
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ret void
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}
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attributes #0 = { "use-soft-float"="false" }
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attributes #1 = { argmemonly nounwind willreturn writeonly }
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attributes #2 = { builtin nounwind }
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attributes #3 = { nounwind }
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