fix

Author: daniilavdeev

llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp

@@ -27,6 +27,7 @@
 #include "llvm/IR/DebugInfo.h"
 #include "llvm/IR/GlobalVariable.h"
 #include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCObjectStreamer.h"
 #include "llvm/MC/MCSection.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSymbol.h"
@@ -494,7 +495,7 @@ void DwarfCompileUnit::attachLowHighPC(DIE &D, const MCSymbol *Begin,
 
   addLabelAddress(D, dwarf::DW_AT_low_pc, Begin);
   if (DD->getDwarfVersion() >= 4 &&
-      (!isDwoUnit() || !llvm::isRangeRelaxable(Begin, End))) {
+      (!isDwoUnit() || llvm::absoluteSymbolDiff(Begin, End).has_value())) {
     addLabelDelta(D, dwarf::DW_AT_high_pc, End, Begin);
     return;
   }

llvm/test/DebugInfo/X86/fission-ranges.ll

@@ -45,21 +45,21 @@
 ; if they've changed due to a bugfix, change in register allocation, etc.
 
 ; CHECK:      [[A]]:
-; CHECK-NEXT:   DW_LLE_startx_length (0x00000001, 0x00000011): DW_OP_consts +0, DW_OP_stack_value
-; CHECK-NEXT:   DW_LLE_startx_length (0x00000002, 0x0000000b): DW_OP_reg0 RAX
-; CHECK-NEXT:   DW_LLE_startx_length (0x00000003, 0x00000012): DW_OP_breg7 RSP-4
+; CHECK-NEXT:   DW_LLE_startx_length (0x00000002, 0x00000011): DW_OP_consts +0, DW_OP_stack_value
+; CHECK-NEXT:   DW_LLE_startx_length (0x00000004, 0x0000000b): DW_OP_reg0 RAX
+; CHECK-NEXT:   DW_LLE_startx_length (0x00000005, 0x00000012): DW_OP_breg7 RSP-4
 ; CHECK-NEXT:   DW_LLE_end_of_list   ()
 ; CHECK:      [[E]]:
-; CHECK-NEXT:   DW_LLE_startx_length (0x00000004, 0x0000000b): DW_OP_reg0 RAX
-; CHECK-NEXT:   DW_LLE_startx_length (0x00000005, 0x0000005a): DW_OP_breg7 RSP-36
+; CHECK-NEXT:   DW_LLE_startx_length (0x00000006, 0x0000000b): DW_OP_reg0 RAX
+; CHECK-NEXT:   DW_LLE_startx_length (0x00000007, 0x0000005a): DW_OP_breg7 RSP-36
 ; CHECK-NEXT:   DW_LLE_end_of_list   ()
 ; CHECK:      [[B]]:
-; CHECK-NEXT:   DW_LLE_startx_length (0x00000006, 0x0000000b): DW_OP_reg0 RAX
-; CHECK-NEXT:   DW_LLE_startx_length (0x00000007, 0x00000042): DW_OP_breg7 RSP-24
+; CHECK-NEXT:   DW_LLE_startx_length (0x00000008, 0x0000000b): DW_OP_reg0 RAX
+; CHECK-NEXT:   DW_LLE_startx_length (0x00000009, 0x00000042): DW_OP_breg7 RSP-24
 ; CHECK-NEXT:   DW_LLE_end_of_list   ()
 ; CHECK:      [[D]]:
-; CHECK-NEXT:   DW_LLE_startx_length (0x00000008, 0x0000000b): DW_OP_reg0 RAX
-; CHECK-NEXT:   DW_LLE_startx_length (0x00000009, 0x0000002a): DW_OP_breg7 RSP-12
+; CHECK-NEXT:   DW_LLE_startx_length (0x0000000a, 0x0000000b): DW_OP_reg0 RAX
+; CHECK-NEXT:   DW_LLE_startx_length (0x0000000b, 0x0000002a): DW_OP_breg7 RSP-12
 ; CHECK-NEXT:   DW_LLE_end_of_list   ()
 
 ; Make sure we don't produce any relocations in any .dwo section (though in particular, debug_info.dwo)
@@ -69,7 +69,7 @@
 ; (9 is the last index in debug_loc.dwo, making 10 entries of 8 bytes each,
 ; 10 * 8 == 80 base 10 == 50 base 16)
 
-; HDR: .debug_addr 00000050
+; HDR: .debug_addr 00000060
 ; HDR-NOT: .rela.{{.*}}.dwo
 
 ; Check for the existence of a DWARF v5-style range list table in the .debug_rnglists