The second part of support for generating dwarf for assembly source files. This

generates the dwarf Compile Unit DIE and a dwarf subprogram DIE for each
non-temporary label.

The next part will be to get the clang driver to enable this when assembling
a .s file.  rdar://9275556


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146262 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 113 insertions, 0 deletions

diff --git a/test/MC/MachO/gen-dwarf.s b/test/MC/MachO/gen-dwarf.s
new file mode 100644
index 0000000000..6b851354cc
--- /dev/null
+++ b/test/MC/MachO/gen-dwarf.s
@@ -0,0 +1,113 @@
+// RUN: llvm-mc -g -triple i386-apple-darwin10 %s -filetype=obj -o %t
+// RUN: llvm-dwarfdump %t | FileCheck %s
+
+.globl _bar
+_bar:
+	movl	$0, %eax
+L1:	leave
+	ret
+_foo:
+	nop
+.data
+_x:	.long 1
+
+// CHECK: file format Mach-O 32-bit i386
+
+// CHECK: .debug_abbrev contents:
+// CHECK: Abbrev table for offset: 0x00000000
+// CHECK: [1] DW_TAG_compile_unit	DW_CHILDREN_yes
+// CHECK: 	DW_AT_stmt_list	DW_FORM_data4
+// CHECK: 	DW_AT_low_pc	DW_FORM_addr
+// CHECK: 	DW_AT_high_pc	DW_FORM_addr
+// CHECK: 	DW_AT_name	DW_FORM_string
+// CHECK: 	DW_AT_comp_dir	DW_FORM_string
+// CHECK: 	DW_AT_producer	DW_FORM_string
+// CHECK: 	DW_AT_language	DW_FORM_data2
+
+// CHECK: [2] DW_TAG_subprogram	DW_CHILDREN_yes
+// CHECK: 	DW_AT_name	DW_FORM_string
+// CHECK: 	DW_AT_decl_file	DW_FORM_data4
+// CHECK: 	DW_AT_decl_line	DW_FORM_data4
+// CHECK: 	DW_AT_low_pc	DW_FORM_addr
+// CHECK: 	DW_AT_high_pc	DW_FORM_addr
+// CHECK: 	DW_AT_prototyped	DW_FORM_flag
+
+// CHECK: [3] DW_TAG_unspecified_parameters	DW_CHILDREN_no
+
+
+// CHECK: .debug_info contents:
+
+// We don't check the leading addresses these are at.
+// CHECK:  DW_TAG_compile_unit [1] *
+// CHECK:    DW_AT_stmt_list [DW_FORM_data4]	(0x00000000)
+// CHECK:    DW_AT_low_pc [DW_FORM_addr]	(0x0000000000000000)
+// CHECK:    DW_AT_high_pc [DW_FORM_addr]	(0x0000000000000008)
+// We don't check the file name as it is a temp directory
+// CHECK:    DW_AT_name [DW_FORM_string]
+// We don't check the DW_AT_comp_dir which is the current working directory
+// CHECK:    DW_AT_producer [DW_FORM_string]	("llvm-mc (based on LLVM 3.1svn)")
+// CHECK:    DW_AT_language [DW_FORM_data2]	(0x8001)
+
+// CHECK:    DW_TAG_subprogram [2] *
+// CHECK:      DW_AT_name [DW_FORM_string]	("bar")
+// CHECK:      DW_AT_decl_file [DW_FORM_data4]	(0x00000001)
+// CHECK:      DW_AT_decl_line [DW_FORM_data4]	(0x00000005)
+// CHECK:      DW_AT_low_pc [DW_FORM_addr]	(0x0000000000000000)
+// CHECK:      DW_AT_high_pc [DW_FORM_addr]	(0x0000000000000007)
+// CHECK:      DW_AT_prototyped [DW_FORM_flag]	(0x00)
+
+// CHECK:      DW_TAG_unspecified_parameters [3]  
+
+// CHECK:      NULL
+
+// CHECK:    DW_TAG_subprogram [2] *
+// CHECK:      DW_AT_name [DW_FORM_string]	("foo")
+// CHECK:      DW_AT_decl_file [DW_FORM_data4]	(0x00000001)
+// CHECK:      DW_AT_decl_line [DW_FORM_data4]	(0x00000009)
+// CHECK:      DW_AT_low_pc [DW_FORM_addr]	(0x0000000000000007)
+// CHECK:      DW_AT_high_pc [DW_FORM_addr]	(0x0000000000000008)
+// CHECK:      DW_AT_prototyped [DW_FORM_flag]	(0x00)
+
+// CHECK:      DW_TAG_unspecified_parameters [3]  
+
+// CHECK:      NULL
+
+// CHECK:    NULL
+
+// CHECK: .debug_aranges contents:
+// CHECK: Address Range Header: length = 0x0000001c, version = 0x0002, cu_offset = 0x00000000, addr_size = 0x04, seg_size = 0x00
+
+// CHECK: .debug_lines contents:
+// CHECK: Line table prologue:
+// We don't check the total_length as it includes lengths of temp paths
+// CHECK:         version: 2
+// We don't check the prologue_length as it too includes lengths of temp paths
+// CHECK: min_inst_length: 1
+// CHECK: default_is_stmt: 1
+// CHECK:       line_base: -5
+// CHECK:      line_range: 14
+// CHECK:     opcode_base: 13
+// CHECK: standard_opcode_lengths[DW_LNS_copy] = 0
+// CHECK: standard_opcode_lengths[DW_LNS_advance_pc] = 1
+// CHECK: standard_opcode_lengths[DW_LNS_advance_line] = 1
+// CHECK: standard_opcode_lengths[DW_LNS_set_file] = 1
+// CHECK: standard_opcode_lengths[DW_LNS_set_column] = 1
+// CHECK: standard_opcode_lengths[DW_LNS_negate_stmt] = 0
+// CHECK: standard_opcode_lengths[DW_LNS_set_basic_block] = 0
+// CHECK: standard_opcode_lengths[DW_LNS_const_add_pc] = 0
+// CHECK: standard_opcode_lengths[DW_LNS_fixed_advance_pc] = 1
+// CHECK: standard_opcode_lengths[DW_LNS_set_prologue_end] = 0
+// CHECK: standard_opcode_lengths[DW_LNS_set_epilogue_begin] = 0
+// CHECK: standard_opcode_lengths[DW_LNS_set_isa] = 1
+// We don't check include_directories as it has a temp path
+// CHECK:                 Dir  Mod Time   File Len   File Name
+// CHECK:                 ---- ---------- ---------- ---------------------------
+// CHECK: file_names[  1]    1 0x00000000 0x00000000 gen-dwarf.s
+
+// CHECK: Address            Line   Column File   ISA Flags
+// CHECK: ------------------ ------ ------ ------ --- -------------
+// CHECK: 0x0000000000000000      6      0      1   0  is_stmt
+// CHECK: 0x0000000000000005      7      0      1   0  is_stmt
+// CHECK: 0x0000000000000006      8      0      1   0  is_stmt
+// CHECK: 0x0000000000000007     10      0      1   0  is_stmt
+// CHECK: 0x0000000000000008     10      0      1   0  is_stmt end_sequence