1 files changed, 97 insertions, 0 deletions
diff --git a/test/Transforms/Inline/inline_dbg_declare.ll b/test/Transforms/Inline/inline_dbg_declare.ll
new file mode 100644
index 0000000..d296678
--- /dev/null
+++ b/test/Transforms/Inline/inline_dbg_declare.ll
@@ -0,0 +1,97 @@
+; RUN: opt < %s -S -inline | FileCheck %s
+;
+; The purpose of this test is to check that inline pass preserves debug info
+; for variable using the dbg.declare intrinsic.
+;
+;; This test was generated by running this command:
+;; clang.exe -S -O0 -emit-llvm -g foo.c
+;;
+;; foo.c
+;; ==========================
+;; float foo(float x)
+;; {
+;;    return x;
+;; }
+;;
+;; void bar(float *dst)
+;; {
+;;    dst[0] = foo(dst[0]);
+;; }
+;; ==========================
+
+target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
+target triple = "i686-pc-windows-msvc"
+
+; Function Attrs: nounwind
+define float @foo(float %x) #0 {
+entry:
+  %x.addr = alloca float, align 4
+  store float %x, float* %x.addr, align 4
+  call void @llvm.dbg.declare(metadata float* %x.addr, metadata !16, metadata !17), !dbg !18
+  %0 = load float* %x.addr, align 4, !dbg !19
+  ret float %0, !dbg !19
+}
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
+
+; CHECK: define void @bar
+
+; Function Attrs: nounwind
+define void @bar(float* %dst) #0 {
+entry:
+
+; CHECK: [[x_addr_i:%[a-zA-Z0-9.]+]] = alloca float, align 4
+
+  %dst.addr = alloca float*, align 4
+  store float* %dst, float** %dst.addr, align 4
+  call void @llvm.dbg.declare(metadata float** %dst.addr, metadata !20, metadata !17), !dbg !21
+  %0 = load float** %dst.addr, align 4, !dbg !22
+  %arrayidx = getelementptr inbounds float* %0, i32 0, !dbg !22
+  %1 = load float* %arrayidx, align 4, !dbg !22
+  %call = call float @foo(float %1), !dbg !22
+
+; CHECK-NOT: call float @foo
+; CHECK: void @llvm.dbg.declare(metadata float* [[x_addr_i]], metadata [[m23:![0-9]+]], metadata !17), !dbg [[m24:![0-9]+]]
+
+  %2 = load float** %dst.addr, align 4, !dbg !22
+  %arrayidx1 = getelementptr inbounds float* %2, i32 0, !dbg !22
+  store float %call, float* %arrayidx1, align 4, !dbg !22
+  ret void, !dbg !23
+}
+
+attributes #0 = { nounwind }
+attributes #1 = { nounwind readnone }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!13, !14}
+!llvm.ident = !{!15}
+
+!0 = !{!"0x11\0012\00clang version 3.6.0 (trunk)\000\00\000\00\001", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [foo.c] [DW_LANG_C99]
+!1 = !{!"foo.c", !""}
+!2 = !{}
+!3 = !{!4, !9}
+!4 = !{!"0x2e\00foo\00foo\00\001\000\001\000\000\00256\000\002", !1, !5, !6, null, float (float)* @foo, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 2] [foo]
+!5 = !{!"0x29", !1}    ; [ DW_TAG_file_type ] [foo.c]
+!6 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!7 = !{!8, !8}
+!8 = !{!"0x24\00float\000\0032\0032\000\000\004", null, null} ; [ DW_TAG_base_type ] [float] [line 0, size 32, align 32, offset 0, enc DW_ATE_float]
+!9 = !{!"0x2e\00bar\00bar\00\006\000\001\000\000\00256\000\007", !1, !5, !10, null, void (float*)* @bar, null, null, !2} ; [ DW_TAG_subprogram ] [line 6] [def] [scope 7] [bar]
+!10 = !{!"0x15\00\000\000\000\000\000\000", null, null, null, !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!11 = !{null, !12}
+!12 = !{!"0xf\00\000\0032\0032\000\000", null, null, !8} ; [ DW_TAG_pointer_type ] [line 0, size 32, align 32, offset 0] [from float]
+!13 = !{i32 2, !"Dwarf Version", i32 4}
+!14 = !{i32 2, !"Debug Info Version", i32 2}
+!15 = !{!"clang version 3.6.0 (trunk)"}
+!16 = !{!"0x101\00x\0016777217\000", !4, !5, !8} ; [ DW_TAG_arg_variable ] [x] [line 1]
+!17 = !{!"0x102"}               ; [ DW_TAG_expression ]
+!18 = !MDLocation(line: 1, column: 17, scope: !4)
+!19 = !MDLocation(line: 3, column: 5, scope: !4)
+!20 = !{!"0x101\00dst\0016777222\000", !9, !5, !12} ; [ DW_TAG_arg_variable ] [dst] [line 6]
+!21 = !MDLocation(line: 6, column: 17, scope: !9)
+!22 = !MDLocation(line: 8, column: 14, scope: !9)
+!23 = !MDLocation(line: 9, column: 1, scope: !9)
+
+; CHECK: [[CALL_SITE:![0-9]+]] = distinct !MDLocation(line: 8, column: 14, scope: !9)
+; CHECK: [[m23]] = !{!"0x101\00x\0016777217\000", !4, !5, !8, [[CALL_SITE]]} ; [ DW_TAG_arg_variable ] [x] [line 1]
+; CHECK: [[m24]] = !MDLocation(line: 1, column: 17, scope: !4, inlinedAt: [[CALL_SITE]])