Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/test/Transforms/BDCE/basic.ll

@@ -1,386 +0,0 @@
-; RUN: opt -S -bdce -instsimplify < %s | FileCheck %s
-; RUN: opt -S -instsimplify < %s | FileCheck %s -check-prefix=CHECK-IO
-target datalayout = "E-m:e-i64:64-n32:64"
-target triple = "powerpc64-unknown-linux-gnu"
-
-; Function Attrs: nounwind readnone
-define signext i32 @bar(i32 signext %x) #0 {
-entry:
-  %call = tail call signext i32 @foo(i32 signext 5) #0
-  %and = and i32 %call, 4
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @foo(i32 signext 3) #0
-  %and2 = and i32 %call1, 8
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @foo(i32 signext 2) #0
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @foo(i32 signext 1) #0
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @foo(i32 signext 0) #0
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @foo(i32 signext 4) #0
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %shr = ashr i32 %or15, 4
-  ret i32 %shr
-
-; CHECK-LABEL: @bar
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
-; CHECK: tail call signext i32 @foo(i32 signext 2)
-; CHECK: tail call signext i32 @foo(i32 signext 1)
-; CHECK: tail call signext i32 @foo(i32 signext 0)
-; CHECK: tail call signext i32 @foo(i32 signext 4)
-; CHECK: ret i32
-
-; Check that instsimplify is not doing this all on its own.
-; CHECK-IO-LABEL: @bar
-; CHECK-IO: tail call signext i32 @foo(i32 signext 5)
-; CHECK-IO: tail call signext i32 @foo(i32 signext 3)
-; CHECK-IO: tail call signext i32 @foo(i32 signext 2)
-; CHECK-IO: tail call signext i32 @foo(i32 signext 1)
-; CHECK-IO: tail call signext i32 @foo(i32 signext 0)
-; CHECK-IO: tail call signext i32 @foo(i32 signext 4)
-; CHECK-IO: ret i32
-}
-
-; Function Attrs: nounwind readnone
-declare signext i32 @foo(i32 signext) #0
-
-; Function Attrs: nounwind readnone
-define signext i32 @far(i32 signext %x) #1 {
-entry:
-  %call = tail call signext i32 @goo(i32 signext 5) #1
-  %and = and i32 %call, 4
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @goo(i32 signext 3) #1
-  %and2 = and i32 %call1, 8
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @goo(i32 signext 2) #1
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @goo(i32 signext 1) #1
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @goo(i32 signext 0) #1
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @goo(i32 signext 4) #1
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %shr = ashr i32 %or15, 4
-  ret i32 %shr
-
-; CHECK-LABEL: @far
-; Calls to foo(5) and foo(3) are still there, but their results are not used.
-; CHECK: tail call signext i32 @goo(i32 signext 5)
-; CHECK-NEXT: tail call signext i32 @goo(i32 signext 3)
-; CHECK-NEXT: tail call signext i32 @goo(i32 signext 2)
-; CHECK: tail call signext i32 @goo(i32 signext 1)
-; CHECK: tail call signext i32 @goo(i32 signext 0)
-; CHECK: tail call signext i32 @goo(i32 signext 4)
-; CHECK: ret i32
-
-; Check that instsimplify is not doing this all on its own.
-; CHECK-IO-LABEL: @far
-; CHECK-IO: tail call signext i32 @goo(i32 signext 5)
-; CHECK-IO: tail call signext i32 @goo(i32 signext 3)
-; CHECK-IO: tail call signext i32 @goo(i32 signext 2)
-; CHECK-IO: tail call signext i32 @goo(i32 signext 1)
-; CHECK-IO: tail call signext i32 @goo(i32 signext 0)
-; CHECK-IO: tail call signext i32 @goo(i32 signext 4)
-; CHECK-IO: ret i32
-}
-
-declare signext i32 @goo(i32 signext) #1
-
-; Function Attrs: nounwind readnone
-define signext i32 @tar1(i32 signext %x) #0 {
-entry:
-  %call = tail call signext i32 @foo(i32 signext 5) #0
-  %and = and i32 %call, 33554432
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @foo(i32 signext 3) #0
-  %and2 = and i32 %call1, 67108864
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @foo(i32 signext 2) #0
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @foo(i32 signext 1) #0
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @foo(i32 signext 0) #0
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @foo(i32 signext 4) #0
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %bs = tail call i32 @llvm.bswap.i32(i32 %or15) #0
-  %shr = ashr i32 %bs, 4
-  ret i32 %shr
-
-; CHECK-LABEL: @tar1
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
-; CHECK: tail call signext i32 @foo(i32 signext 2)
-; CHECK: tail call signext i32 @foo(i32 signext 1)
-; CHECK: tail call signext i32 @foo(i32 signext 0)
-; CHECK: tail call signext i32 @foo(i32 signext 4)
-; CHECK: ret i32
-}
-
-; Function Attrs: nounwind readnone
-declare i32 @llvm.bswap.i32(i32) #0
-
-; Function Attrs: nounwind readnone
-define signext i32 @tim(i32 signext %x) #0 {
-entry:
-  %call = tail call signext i32 @foo(i32 signext 5) #0
-  %and = and i32 %call, 536870912
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @foo(i32 signext 3) #0
-  %and2 = and i32 %call1, 1073741824
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @foo(i32 signext 2) #0
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @foo(i32 signext 1) #0
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @foo(i32 signext 0) #0
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @foo(i32 signext 4) #0
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %bs = tail call i32 @llvm.bitreverse.i32(i32 %or15) #0
-  %shr = ashr i32 %bs, 4
-  ret i32 %shr
-
-; CHECK-LABEL: @tim
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
-; CHECK: tail call signext i32 @foo(i32 signext 2)
-; CHECK: tail call signext i32 @foo(i32 signext 1)
-; CHECK: tail call signext i32 @foo(i32 signext 0)
-; CHECK: tail call signext i32 @foo(i32 signext 4)
-; CHECK: ret i32
-}
-
-; Function Attrs: nounwind readnone
-declare i32 @llvm.bitreverse.i32(i32) #0
-
-; Function Attrs: nounwind readnone
-define signext i32 @tar2(i32 signext %x) #0 {
-entry:
-  %call = tail call signext i32 @foo(i32 signext 5) #0
-  %and = and i32 %call, 33554432
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @foo(i32 signext 3) #0
-  %and2 = and i32 %call1, 67108864
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @foo(i32 signext 2) #0
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @foo(i32 signext 1) #0
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @foo(i32 signext 0) #0
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @foo(i32 signext 4) #0
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %shl = shl i32 %or15, 10
-  ret i32 %shl
-
-; CHECK-LABEL: @tar2
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
-; CHECK: tail call signext i32 @foo(i32 signext 2)
-; CHECK: tail call signext i32 @foo(i32 signext 1)
-; CHECK: tail call signext i32 @foo(i32 signext 0)
-; CHECK: tail call signext i32 @foo(i32 signext 4)
-; CHECK: ret i32
-}
-
-; Function Attrs: nounwind readnone
-define signext i32 @tar3(i32 signext %x) #0 {
-entry:
-  %call = tail call signext i32 @foo(i32 signext 5) #0
-  %and = and i32 %call, 33554432
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @foo(i32 signext 3) #0
-  %and2 = and i32 %call1, 67108864
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @foo(i32 signext 2) #0
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @foo(i32 signext 1) #0
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @foo(i32 signext 0) #0
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @foo(i32 signext 4) #0
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %add = add i32 %or15, 5
-  %shl = shl i32 %add, 10
-  ret i32 %shl
-
-; CHECK-LABEL: @tar3
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
-; CHECK: tail call signext i32 @foo(i32 signext 2)
-; CHECK: tail call signext i32 @foo(i32 signext 1)
-; CHECK: tail call signext i32 @foo(i32 signext 0)
-; CHECK: tail call signext i32 @foo(i32 signext 4)
-; CHECK: ret i32
-}
-
-; Function Attrs: nounwind readnone
-define signext i32 @tar4(i32 signext %x) #0 {
-entry:
-  %call = tail call signext i32 @foo(i32 signext 5) #0
-  %and = and i32 %call, 33554432
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @foo(i32 signext 3) #0
-  %and2 = and i32 %call1, 67108864
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @foo(i32 signext 2) #0
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @foo(i32 signext 1) #0
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @foo(i32 signext 0) #0
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @foo(i32 signext 4) #0
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %sub = sub i32 %or15, 5
-  %shl = shl i32 %sub, 10
-  ret i32 %shl
-
-; CHECK-LABEL: @tar4
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
-; CHECK: tail call signext i32 @foo(i32 signext 2)
-; CHECK: tail call signext i32 @foo(i32 signext 1)
-; CHECK: tail call signext i32 @foo(i32 signext 0)
-; CHECK: tail call signext i32 @foo(i32 signext 4)
-; CHECK: ret i32
-}
-
-; Function Attrs: nounwind readnone
-define signext i32 @tar5(i32 signext %x) #0 {
-entry:
-  %call = tail call signext i32 @foo(i32 signext 5) #0
-  %and = and i32 %call, 33554432
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @foo(i32 signext 3) #0
-  %and2 = and i32 %call1, 67108864
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @foo(i32 signext 2) #0
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @foo(i32 signext 1) #0
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @foo(i32 signext 0) #0
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @foo(i32 signext 4) #0
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %xor = xor i32 %or15, 5
-  %shl = shl i32 %xor, 10
-  ret i32 %shl
-
-; CHECK-LABEL: @tar5
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
-; CHECK: tail call signext i32 @foo(i32 signext 2)
-; CHECK: tail call signext i32 @foo(i32 signext 1)
-; CHECK: tail call signext i32 @foo(i32 signext 0)
-; CHECK: tail call signext i32 @foo(i32 signext 4)
-; CHECK: ret i32
-}
-
-; Function Attrs: nounwind readnone
-define signext i32 @tar7(i32 signext %x, i1 %b) #0 {
-entry:
-  %call = tail call signext i32 @foo(i32 signext 5) #0
-  %and = and i32 %call, 33554432
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @foo(i32 signext 3) #0
-  %and2 = and i32 %call1, 67108864
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @foo(i32 signext 2) #0
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @foo(i32 signext 1) #0
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @foo(i32 signext 0) #0
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @foo(i32 signext 4) #0
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %v = select i1 %b, i32 %or15, i32 5
-  %shl = shl i32 %v, 10
-  ret i32 %shl
-
-; CHECK-LABEL: @tar7
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
-; CHECK: tail call signext i32 @foo(i32 signext 2)
-; CHECK: tail call signext i32 @foo(i32 signext 1)
-; CHECK: tail call signext i32 @foo(i32 signext 0)
-; CHECK: tail call signext i32 @foo(i32 signext 4)
-; CHECK: ret i32
-}
-
-; Function Attrs: nounwind readnone
-define signext i16 @tar8(i32 signext %x) #0 {
-entry:
-  %call = tail call signext i32 @foo(i32 signext 5) #0
-  %and = and i32 %call, 33554432
-  %or = or i32 %and, %x
-  %call1 = tail call signext i32 @foo(i32 signext 3) #0
-  %and2 = and i32 %call1, 67108864
-  %or3 = or i32 %or, %and2
-  %call4 = tail call signext i32 @foo(i32 signext 2) #0
-  %and5 = and i32 %call4, 16
-  %or6 = or i32 %or3, %and5
-  %call7 = tail call signext i32 @foo(i32 signext 1) #0
-  %and8 = and i32 %call7, 32
-  %or9 = or i32 %or6, %and8
-  %call10 = tail call signext i32 @foo(i32 signext 0) #0
-  %and11 = and i32 %call10, 64
-  %or12 = or i32 %or9, %and11
-  %call13 = tail call signext i32 @foo(i32 signext 4) #0
-  %and14 = and i32 %call13, 128
-  %or15 = or i32 %or12, %and14
-  %tr = trunc i32 %or15 to i16
-  ret i16 %tr
-
-; CHECK-LABEL: @tar8
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 5)
-; CHECK-NOT: tail call signext i32 @foo(i32 signext 3)
-; CHECK: tail call signext i32 @foo(i32 signext 2)
-; CHECK: tail call signext i32 @foo(i32 signext 1)
-; CHECK: tail call signext i32 @foo(i32 signext 0)
-; CHECK: tail call signext i32 @foo(i32 signext 4)
-; CHECK: ret i16
-}
-
-attributes #0 = { nounwind readnone }
-attributes #1 = { nounwind }
-

external/llvm/test/Transforms/BDCE/dbg-multipleuses.ll

@@ -1,47 +0,0 @@
-; Test that BDCE doesn't destroy llvm.dbg.value's argument.
-; RUN: opt -bdce %s -S | FileCheck %s
-
-target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-unknown-linux-gnu"
-
-; CHECK: define void @f()
-; CHECK-NEXT: entry:
-; CHECK-NEXT: tail call void (...) @h()
-; CHECK-NEXT: %[[CALL:.*]] = tail call i32 (...) @g()
-; CHECK-NEXT: tail call void @llvm.dbg.value(metadata i32 %[[CALL:.*]]
-
-define void @f() !dbg !6 {
-entry:
-  tail call void (...) @h(), !dbg !9
-  %call = tail call i32 (...) @g(), !dbg !10
-  tail call void @llvm.dbg.value(metadata i32 %call, metadata !11, metadata !13), !dbg !14
-  %patatino = xor i32 %call, %call
-  tail call void (...) @h(), !dbg !15
-  ret void, !dbg !16
-}
-
-declare void @h(...)
-declare i32 @g(...)
-declare void @llvm.dbg.value(metadata, metadata, metadata)
-
-!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!3, !4}
-!llvm.ident = !{!5}
-
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 288665) (llvm/trunk 288725)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
-!1 = !DIFile(filename: "patatino.c", directory: "/home/davide/work/llvm/build-clang/bin")
-!2 = !{}
-!3 = !{i32 2, !"Dwarf Version", i32 4}
-!4 = !{i32 2, !"Debug Info Version", i32 3}
-!5 = !{!"clang version 4.0.0 (trunk 288665) (llvm/trunk 288725)"}
-!6 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 3, type: !7, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: false, unit: !0, variables: !2)
-!7 = !DISubroutineType(types: !8)
-!8 = !{null}
-!9 = !DILocation(line: 4, column: 3, scope: !6)
-!10 = !DILocation(line: 5, column: 11, scope: !6)
-!11 = !DILocalVariable(name: "a", scope: !6, file: !1, line: 5, type: !12)
-!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
-!13 = !DIExpression()
-!14 = !DILocation(line: 5, column: 7, scope: !6)
-!15 = !DILocation(line: 6, column: 3, scope: !6)
-!16 = !DILocation(line: 7, column: 1, scope: !6)

external/llvm/test/Transforms/BDCE/dce-pure.ll

@@ -1,34 +0,0 @@
-; RUN: opt -bdce -S < %s | FileCheck %s
-; RUN: opt -passes=bdce -S < %s | FileCheck %s
-
-declare i32 @strlen(i8*) readonly nounwind
-
-define void @test1() {
-  call i32 @strlen( i8* null )
-  ret void
-
-; CHECK-LABEL: @test1
-; CHECK-NOT: call
-; CHECK: ret void
-}
-
-define i32 @test2() personality i32 (...)* @__gxx_personality_v0 {
-  ; invoke of pure function should not be deleted!
-  invoke i32 @strlen( i8* null ) readnone
-                  to label %Cont unwind label %Other
-
-Cont:           ; preds = %0
-  ret i32 0
-
-Other:          ; preds = %0
-   %exn = landingpad {i8*, i32}
-            cleanup
-  ret i32 1
-
-; CHECK-LABEL: @test2
-; CHECK: invoke
-; CHECK: ret i32 1
-}
-
-declare i32 @__gxx_personality_v0(...)
-

external/llvm/test/Transforms/BDCE/dead-void-ro.ll

@@ -1,18 +0,0 @@
-; RUN: opt -S -bdce < %s | FileCheck %s
-
-target triple = "x86_64-unknown-linux-gnu"
-
-define void @PR34211(i16* %p) {
-; CHECK-LABEL: @PR34211
-  %not_demanded_but_not_dead = load volatile i16, i16* %p
-  call void @no_side_effects_so_dead(i16 %not_demanded_but_not_dead)
-  ret void
-
-; CHECK: %not_demanded_but_not_dead = load volatile i16, i16* %p
-; CHECK-NEXT: ret void
-}
-
-declare void @no_side_effects_so_dead(i16) #0
-
-attributes #0 = { nounwind readnone }
-

external/llvm/test/Transforms/BDCE/invalidate-assumptions.ll

@@ -1,100 +0,0 @@
-; RUN: opt -bdce %s -S | FileCheck %s
-
-; The 'nuw' on the subtract allows us to deduce that %setbit is not demanded.
-; But if we change that value to '0', then the 'nuw' is no longer valid. If we don't
-; remove the 'nuw', another pass (-instcombine) may make a transform based on an
-; that incorrect assumption and we can miscompile:
-; https://bugs.llvm.org/show_bug.cgi?id=33695
-
-define i1 @PR33695(i1 %b, i8 %x) {
-; CHECK-LABEL: @PR33695(
-; CHECK-NEXT:    [[SETBIT:%.*]] = or i8 %x, 64
-; CHECK-NEXT:    [[LITTLE_NUMBER:%.*]] = zext i1 %b to i8
-; CHECK-NEXT:    [[BIG_NUMBER:%.*]] = shl i8 0, 1
-; CHECK-NEXT:    [[SUB:%.*]] = sub i8 [[BIG_NUMBER]], [[LITTLE_NUMBER]]
-; CHECK-NEXT:    [[TRUNC:%.*]] = trunc i8 [[SUB]] to i1
-; CHECK-NEXT:    ret i1 [[TRUNC]]
-;
-  %setbit = or i8 %x, 64
-  %little_number = zext i1 %b to i8
-  %big_number = shl i8 %setbit, 1
-  %sub = sub nuw i8 %big_number, %little_number
-  %trunc = trunc i8 %sub to i1
-  ret i1 %trunc
-}
-
-; Similar to above, but now with more no-wrap.
-; https://bugs.llvm.org/show_bug.cgi?id=34037
-
-define i64 @PR34037(i64 %m, i32 %r, i64 %j, i1 %b, i32 %k, i64 %p) {
-; CHECK-LABEL: @PR34037(
-; CHECK-NEXT:    [[CONV:%.*]] = zext i32 %r to i64
-; CHECK-NEXT:    [[AND:%.*]] = and i64 %m, 0
-; CHECK-NEXT:    [[NEG:%.*]] = xor i64 0, 34359738367
-; CHECK-NEXT:    [[OR:%.*]] = or i64 %j, 0
-; CHECK-NEXT:    [[SHL:%.*]] = shl i64 0, 29
-; CHECK-NEXT:    [[CONV1:%.*]] = select i1 %b, i64 7, i64 0
-; CHECK-NEXT:    [[SUB:%.*]] = sub i64 [[SHL]], [[CONV1]]
-; CHECK-NEXT:    [[CONV2:%.*]] = zext i32 %k to i64
-; CHECK-NEXT:    [[MUL:%.*]] = mul i64 [[SUB]], [[CONV2]]
-; CHECK-NEXT:    [[CONV4:%.*]] = and i64 %p, 65535
-; CHECK-NEXT:    [[AND5:%.*]] = and i64 [[MUL]], [[CONV4]]
-; CHECK-NEXT:    ret i64 [[AND5]]
-;
-  %conv = zext i32 %r to i64
-  %and = and i64 %m, %conv
-  %neg = xor i64 %and, 34359738367
-  %or = or i64 %j, %neg
-  %shl = shl i64 %or, 29
-  %conv1 = select i1 %b, i64 7, i64 0
-  %sub = sub nuw nsw i64 %shl, %conv1
-  %conv2 = zext i32 %k to i64
-  %mul = mul nsw i64 %sub, %conv2
-  %conv4 = and i64 %p, 65535
-  %and5 = and i64 %mul, %conv4
-  ret i64 %and5
-}
-
-; This is a manufactured example based on the 1st test to prove that the
-; assumption-killing algorithm stops at the call. Ie, it does not remove
-; nsw/nuw from the 'add' because a call demands all bits of its argument.
-
-declare i1 @foo(i1)
-
-define i1 @poison_on_call_user_is_ok(i1 %b, i8 %x) {
-; CHECK-LABEL: @poison_on_call_user_is_ok(
-; CHECK-NEXT:    [[SETBIT:%.*]] = or i8 %x, 64
-; CHECK-NEXT:    [[LITTLE_NUMBER:%.*]] = zext i1 %b to i8
-; CHECK-NEXT:    [[BIG_NUMBER:%.*]] = shl i8 0, 1
-; CHECK-NEXT:    [[SUB:%.*]] = sub i8 [[BIG_NUMBER]], [[LITTLE_NUMBER]]
-; CHECK-NEXT:    [[TRUNC:%.*]] = trunc i8 [[SUB]] to i1
-; CHECK-NEXT:    [[CALL_RESULT:%.*]] = call i1 @foo(i1 [[TRUNC]])
-; CHECK-NEXT:    [[ADD:%.*]] = add nuw nsw i1 [[CALL_RESULT]], true
-; CHECK-NEXT:    [[MUL:%.*]] = mul i1 [[TRUNC]], [[ADD]]
-; CHECK-NEXT:    ret i1 [[MUL]]
-;
-  %setbit = or i8 %x, 64
-  %little_number = zext i1 %b to i8
-  %big_number = shl i8 %setbit, 1
-  %sub = sub nuw i8 %big_number, %little_number
-  %trunc = trunc i8 %sub to i1
-  %call_result = call i1 @foo(i1 %trunc)
-  %add = add nsw nuw i1 %call_result, 1
-  %mul = mul i1 %trunc, %add
-  ret i1 %mul
-}
-
-
-; We were asserting that all users of a trivialized integer-type instruction were
-; also integer-typed, but that's too strong. The alloca has a pointer-type result.
-
-define void @PR34179(i32* %a) {
-; CHECK-LABEL: @PR34179(
-; CHECK-NEXT:    [[T0:%.*]] = load volatile i32, i32* %a
-; CHECK-NEXT:    ret void
-;
-  %t0 = load volatile i32, i32* %a
-  %vla = alloca i32, i32 %t0
-  ret void
-}
-

external/llvm/test/Transforms/BDCE/order.ll

@@ -1,37 +0,0 @@
-; RUN: opt -bdce -S < %s | FileCheck %s
-target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-unknown-linux-gnu"
-
-declare i32 @__gxx_personality_v0(...)
-
-define fastcc void @_ZN11__sanitizerL12TestRegistryEPNS_14ThreadRegistryEb() #0 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
-entry:
-  br i1 undef, label %if.else, label %entry.if.end_crit_edge
-
-if.else:
-  ret void
-
-invoke.cont70:
-  store i32 %call71, i32* undef, align 4
-  br label %if.else
-
-; CHECK-LABEL: @_ZN11__sanitizerL12TestRegistryEPNS_14ThreadRegistryEb
-; CHECK: store i32 %call71
-
-lpad65.loopexit.split-lp.loopexit.split-lp:
-  br label %if.else
-
-lpad65.loopexit.split-lp.loopexit.split-lp.loopexit:
-  %lpad.loopexit1121 = landingpad { i8*, i32 }
-          cleanup
-  br label %lpad65.loopexit.split-lp.loopexit.split-lp
-
-entry.if.end_crit_edge:
-  %call71 = invoke i32 @_ZN11__sanitizer14ThreadRegistry12CreateThreadEmbjPv()
-          to label %invoke.cont70 unwind label %lpad65.loopexit.split-lp.loopexit.split-lp.loopexit
-}
-
-declare i32 @_ZN11__sanitizer14ThreadRegistry12CreateThreadEmbjPv()
-
-attributes #0 = { uwtable }
-

external/llvm/test/Transforms/BDCE/pr26587.ll

@@ -1,46 +0,0 @@
-; Test that BDCE doesn't destroy llvm.dbg.value's argument.
-; RUN: opt -bdce %s -S | FileCheck %s
-
-target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
-target triple = "x86_64-unknown-linux-gnu"
-
-; CHECK: define void @f()
-; CHECK-NEXT: entry:
-; CHECK-NEXT: tail call void (...) @h()
-; CHECK-NEXT: %[[CALL:.*]] = tail call i32 (...) @g()
-; CHECK-NEXT: tail call void @llvm.dbg.value(metadata i32 %[[CALL:.*]]
-
-define void @f() !dbg !6 {
-entry:
-  tail call void (...) @h(), !dbg !9
-  %call = tail call i32 (...) @g(), !dbg !10
-  tail call void @llvm.dbg.value(metadata i32 %call, metadata !11, metadata !13), !dbg !14
-  tail call void (...) @h(), !dbg !15
-  ret void, !dbg !16
-}
-
-declare void @h(...)
-declare i32 @g(...)
-declare void @llvm.dbg.value(metadata, metadata, metadata)
-
-!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!3, !4}
-!llvm.ident = !{!5}
-
-!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 288665) (llvm/trunk 288725)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
-!1 = !DIFile(filename: "patatino.c", directory: "/home/davide/work/llvm/build-clang/bin")
-!2 = !{}
-!3 = !{i32 2, !"Dwarf Version", i32 4}
-!4 = !{i32 2, !"Debug Info Version", i32 3}
-!5 = !{!"clang version 4.0.0 (trunk 288665) (llvm/trunk 288725)"}
-!6 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 3, type: !7, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: false, unit: !0, variables: !2)
-!7 = !DISubroutineType(types: !8)
-!8 = !{null}
-!9 = !DILocation(line: 4, column: 3, scope: !6)
-!10 = !DILocation(line: 5, column: 11, scope: !6)
-!11 = !DILocalVariable(name: "a", scope: !6, file: !1, line: 5, type: !12)
-!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
-!13 = !DIExpression()
-!14 = !DILocation(line: 5, column: 7, scope: !6)
-!15 = !DILocation(line: 6, column: 3, scope: !6)
-!16 = !DILocation(line: 7, column: 1, scope: !6)