1 files changed, 47 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/2012-11-30-regpres-dbg.ll b/llvm/test/CodeGen/X86/2012-11-30-regpres-dbg.ll
new file mode 100644
index 00000000000..a717202d357
--- /dev/null
+++ b/llvm/test/CodeGen/X86/2012-11-30-regpres-dbg.ll
@@ -0,0 +1,47 @@
+; RUN: llc < %s -mtriple=x86_64-apple-macosx -enable-misched \
+; RUN:          -verify-machineinstrs | FileCheck %s
+;
+; Test RegisterPressure handling of DBG_VALUE.
+;
+; CHECK: %entry
+; CHECK: DEBUG_VALUE: test:callback
+; CHECK: ret
+
+%struct.btCompoundLeafCallback = type { i32, i32 }
+
+declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
+
+define void @test() unnamed_addr uwtable ssp align 2 !dbg !2 {
+entry:
+  %callback = alloca %struct.btCompoundLeafCallback, align 8
+  br i1 undef, label %if.end, label %if.then
+
+if.then:                                          ; preds = %entry
+  unreachable
+
+if.end:                                           ; preds = %entry
+  call void @llvm.dbg.declare(metadata %struct.btCompoundLeafCallback* %callback, metadata !3, metadata !DIExpression()), !dbg !DILocation(scope: !2)
+  %m = getelementptr inbounds %struct.btCompoundLeafCallback, %struct.btCompoundLeafCallback* %callback, i64 0, i32 1
+  store i32 0, i32* undef, align 8
+  %cmp12447 = icmp sgt i32 undef, 0
+  br i1 %cmp12447, label %for.body.lr.ph, label %invoke.cont44
+
+for.body.lr.ph:                                   ; preds = %if.end
+  unreachable
+
+invoke.cont44:                                    ; preds = %if.end
+  ret void
+}
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!8}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 (trunk 168984) (llvm/trunk 168983)", isOptimized: true, emissionKind: FullDebug, file: !6)
+!2 = distinct !DISubprogram(name: "test", isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 1, file: !6, scope: !5, type: !7)
+!3 = !DILocalVariable(name: "callback", line: 214, scope: !2, type: !4)
+!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "btCompoundLeafCallback", line: 90, size: 64, align: 64, file: !6)
+!5 = !DIFile(filename: "MultiSource/Benchmarks/Bullet/btCompoundCollisionAlgorithm.cpp", directory: "MultiSource/Benchmarks/Bullet")
+!6 = !DIFile(filename: "MultiSource/Benchmarks/Bullet/btCompoundCollisionAlgorithm.cpp", directory: "MultiSource/Benchmarks/Bullet")
+!7 = !DISubroutineType(types: !9)
+!8 = !{i32 1, !"Debug Info Version", i32 3}
+!9 = !{null}