1 files changed, 72 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/frame-lowering-debug-intrinsic-2.ll b/llvm/test/CodeGen/X86/frame-lowering-debug-intrinsic-2.ll
new file mode 100644
index 00000000000..ab797e04b40
--- /dev/null
+++ b/llvm/test/CodeGen/X86/frame-lowering-debug-intrinsic-2.ll
@@ -0,0 +1,72 @@
+; Test ensuring debug intrinsics do not affect generated function prologue.
+;
+; RUN: llc -O1 -mtriple=x86_64-unknown-unknown -o - %s | FileCheck %s
+
+@a = local_unnamed_addr global i64 0, align 8
+
+define void @noDebug() {
+entry:
+  %0 = load i64, i64* @a, align 8
+  %1 = load i64, i64* @a, align 8
+  %2 = load i64, i64* @a, align 8
+  %3 = tail call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %0, i64 %1)
+  %4 = extractvalue { i64, i1 } %3, 0
+  %5 = tail call i64 @fn1(i64 %4, i64 %2)
+  tail call void (...) @printf()
+  tail call void (...) @printf(i64 1, i64 2, i64 3, i64 4, i32 0, i64 0, i64 %4, i64 %5)
+  ret void
+}
+
+; CHECK-LABEL: noDebug
+; CHECK:       addq  $24, %rsp
+; CHECK:       popq  %rbx
+; CHECK-NEXT:  popq  %r14
+; CHECK-NEXT:  retq
+
+
+define void @withDebug() !dbg !18 {
+entry:
+  %0 = load i64, i64* @a, align 8
+  %1 = load i64, i64* @a, align 8
+  %2 = load i64, i64* @a, align 8
+  %3 = tail call { i64, i1 } @llvm.uadd.with.overflow.i64(i64 %0, i64 %1)
+  %4 = extractvalue { i64, i1 } %3, 0
+  %5 = tail call i64 @fn1(i64 %4, i64 %2)
+  tail call void @llvm.dbg.value(metadata i64 %4, i64 0, metadata !23, metadata !33), !dbg !34
+  tail call void @llvm.dbg.value(metadata i64 %5, i64 0, metadata !22, metadata !33), !dbg !35
+  tail call void (...) @printf()
+  tail call void (...) @printf(i64 1, i64 2, i64 3, i64 4, i32 0, i64 0, i64 %4, i64 %5)
+  ret void
+}
+
+; CHECK-LABEL: withDebug
+; CHECK:       #DEBUG_VALUE: test:j <- %RBX
+; CHECK-NEXT:  addq  $24, %rsp
+; CHECK:       popq  %rbx
+; CHECK-NEXT:  popq  %r14
+; CHECK-NEXT:  retq
+
+declare { i64, i1 } @llvm.uadd.with.overflow.i64(i64, i64)
+declare i64 @fn1(i64, i64)
+
+declare void @printf(...)
+
+declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
+
+
+!llvm.dbg.cu = !{!1}
+!llvm.module.flags = !{!15, !16}
+
+!1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 4.0.0")
+!2 = !DIFile(filename: "test.cpp", directory: "")
+!11 = !DIBasicType(name: "long int", size: 64, encoding: DW_ATE_signed)
+!15 = !{i32 2, !"Dwarf Version", i32 4}
+!16 = !{i32 2, !"Debug Info Version", i32 3}
+!18 = distinct !DISubprogram(name: "test", scope: !2, file: !2, line: 5, unit: !1)
+!22 = !DILocalVariable(name: "i", scope: !18, file: !2, line: 6, type: !11)
+!23 = !DILocalVariable(name: "j", scope: !18, file: !2, line: 7, type: !11)
+!33 = !DIExpression()
+!34 = !DILocation(line: 7, column: 17, scope: !18)
+!35 = !DILocation(line: 6, column: 8, scope: !18)
+!36 = !DILocation(line: 9, column: 3, scope: !18)
+!37 = !DILocation(line: 10, column: 10, scope: !18)