[llvm] eb5c7f6 - [ARM] Add test with tcreturn and debug value.

[Florian Hahn via llvm-commits]

Author: Florian Hahn
Date: 2020-07-10T16:32:21+01:00
New Revision: eb5c7f6b8fe0e66bbbc2aa23cc899fa11b750030

URL: https://github.com/llvm/llvm-project/commit/eb5c7f6b8fe0e66bbbc2aa23cc899fa11b750030
DIFF: https://github.com/llvm/llvm-project/commit/eb5c7f6b8fe0e66bbbc2aa23cc899fa11b750030.diff

LOG: [ARM] Add test with tcreturn and debug value.

In the attached test case, a non-terminator instruction (DBG_VALUE) is
inserted after a terminator, producing an invalid MBB.

Added: 
    llvm/test/CodeGen/ARM/dbg-tcreturn.ll

Modified: 
    

Removed: 
    


################################################################################
diff  --git a/llvm/test/CodeGen/ARM/dbg-tcreturn.ll b/llvm/test/CodeGen/ARM/dbg-tcreturn.ll
new file mode 100644
index 000000000000..9aed1bb14d58
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/dbg-tcreturn.ll
@@ -0,0 +1,46 @@
+; RUN: llc %s -o - -stop-after=finalize-isel | FileCheck %s
+
+target datalayout = "e-m:o-p:32:32-Fi8-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
+target triple = "thumbv7-apple-ios7.0.0"
+
+; CHECK-LABEL: name: test
+; CHECK:       body:
+; CHECK-NEXT:   bb.0.entry:
+; CHECK-NEXT:     liveins: $r0, $r1
+; CHECK:          %1:gpr = COPY $r1
+; CHECK-NEXT:     %0:gpr = COPY $r0
+; CHECK-NEXT:     $r0 = COPY %0
+; CHECK-NEXT:     $r1 = COPY %1
+; CHECK-NEXT:     TCRETURNdi &__divsi3, implicit $sp, implicit $r0, implicit $r1
+; CHECK-NEXT:     DBG_VALUE $noreg, $noreg, !13, !DIExpression(), debug-location !16
+
+define i32 @test(i32 %a1, i32 %a2) !dbg !5 {
+entry:
+  %res = sdiv i32 %a1, %a2
+  call void @llvm.dbg.value(metadata i32 %res, metadata !13, metadata !DIExpression()), !dbg !16
+  ret i32 %res
+}
+
+; Function Attrs: nounwind readnone speculatable willreturn
+declare void @llvm.dbg.value(metadata, metadata, metadata)
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_Swift, file: !1, producer: "Swift", isOptimized: true, runtimeVersion: 5, emissionKind: FullDebug)
+!1 = !DIFile(filename: "foo.swift", directory: "/tmp")
+!2 = !{}
+!3 = !{i32 2, !"Debug Info Version", i32 3}
+!4 = !{i32 1, !"Swift Minor Version", i8 3}
+!5 = distinct !DISubprogram(name: "n0", linkageName: "n1", scope: !7, file: !6, line: 86, type: !8, scopeLine: 86, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
+!6 = !DIFile(filename: "bar.swift", directory: "")
+!7 = !DIModule(scope: null, name: "Swift")
+!8 = !DISubroutineType(types: !9)
+!9 = !{!10, !12}
+!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Int", scope: !7, file: !11, size: 32, elements: !2, runtimeLang: DW_LANG_Swift, identifier: "$i1")
+!11 = !DIFile(filename: "f1.swift", directory: "")
+!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "n2", scope: !7, file: !6, size: 32, elements: !2, runtimeLang: DW_LANG_Swift, identifier: "n3")
+!13 = !DILocalVariable(name: "n4", scope: !14, file: !1, line: 89, type: !15)
+!14 = distinct !DILexicalBlock(scope: !5, file: !6, line: 86, column: 34)
+!15 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !10)
+!16 = !DILocation(line: 89, column: 9, scope: !14)