Turn on CU ranges if we've got multiple compile units in the same
module since there's no range guarantee that we could make given output order. This also fixes up the testcases that have multiple CUs to have the correct range offset. llvm-svn: 200422
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@ -1119,10 +1119,12 @@ void DwarfDebug::endSections() {
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}
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// For now only turn on CU ranges if we've explicitly asked for it,
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// we have -ffunction-sections enabled, or we've emitted a function
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// into a unique section. At this point all sections should be finalized
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// except for dwarf sections.
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HasCURanges = DwarfCURanges || UsedNonDefaultText ||
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// we have -ffunction-sections enabled, we've emitted a function
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// into a unique section, or we're using LTO. If we're using LTO then
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// we can't know that any particular function in the module is correlated
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// to a particular CU and so we need to be conservative. At this point all
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// sections should be finalized except for dwarf sections.
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HasCURanges = DwarfCURanges || UsedNonDefaultText || (CUMap.size() > 1) ||
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TargetMachine::getFunctionSections();
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}
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@ -8,11 +8,11 @@
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; CHECK: .debug_info contents:
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; CHECK: DW_TAG_compile_unit
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; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset] (0x00000000)
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; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
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; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x00000000)
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; CHECK: DW_TAG_compile_unit
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; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset] (0x0000003c)
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; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
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; CHECK: DW_AT_ranges [DW_FORM_sec_offset] (0x00000020)
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; CHECK: .debug_line contents:
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; CHECK-NEXT: Line table prologue:
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@ -25,12 +25,12 @@
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; DWARF3: .debug_info contents:
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; DWARF3: DW_TAG_compile_unit
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; DWARF3: DW_AT_stmt_list [DW_FORM_data4] (0x00000000)
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; DWARF3: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
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; DWARF3: DW_AT_stmt_list [DW_FORM_data4] (0x00000000)
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; DWARF3: DW_AT_ranges [DW_FORM_data4] (0x00000000)
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; DWARF3: DW_TAG_compile_unit
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; DWARF3: DW_AT_stmt_list [DW_FORM_data4] (0x0000003c)
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; DWARF3: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
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; DWARF3: DW_AT_ranges [DW_FORM_data4] (0x00000020)
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; DWARF3: .debug_line contents:
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; DWARF3-NEXT: Line table prologue:
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