[PATCH] D90989: [llvm] Check the debug info line table for basic block sections.

Snehasish Kumar via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Nov 6 16:26:04 PST 2020


snehasish created this revision.
snehasish added reviewers: dblaikie, tmsriram.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.
snehasish requested review of this revision.

Extend the existing basic block sections debug info test to check for the correctness of the generated line table.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D90989

Files:
  llvm/test/DebugInfo/X86/basic-block-sections_1.ll


Index: llvm/test/DebugInfo/X86/basic-block-sections_1.ll
===================================================================
--- llvm/test/DebugInfo/X86/basic-block-sections_1.ll
+++ llvm/test/DebugInfo/X86/basic-block-sections_1.ll
@@ -2,14 +2,15 @@
 ; RUN: llc -O0 %s --basic-block-sections=all --unique-basic-block-section-names -mtriple=x86_64-* -filetype=obj -o %t && llvm-dwarfdump  -debug-info -v %t | FileCheck --check-prefix=BB-SECTIONS %s
 ; RUN: llc -O0 %s --basic-block-sections=all --unique-basic-block-section-names -mtriple=x86_64-* -filetype=obj -split-dwarf-file=%t.dwo -o %t && llvm-dwarfdump  -debug-info -v %t | FileCheck --check-prefix=BB-SECTIONS %s
 ; RUN: llc -O0 %s --basic-block-sections=all -mtriple=x86_64-* -filetype=asm -o - | FileCheck --check-prefix=BB-SECTIONS-ASM %s
+; RUN: llc -O0 %s -mtriple=x86_64-* -filetype=obj -o %t && llvm-dwarfdump  -debug-line %t | FileCheck --check-prefix=BB-SECTIONS-LINE-TABLE %s
 
 ; From:
-; int foo(int a) {
-;   if (a > 20)
-;     return 2;
-;   else
-;     return 0;
-; }
+; 1  int foo(int a) {
+; 2    if (a > 20)
+; 3      return 2;
+; 4    else
+; 5      return 0;
+; 6  }
 
 ; NO-SECTIONS: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000 ".text")
 ; NO-SECTIONS: DW_AT_high_pc [DW_FORM_data4] ({{.*}})
@@ -47,6 +48,13 @@
 ; BB-SECTIONS-ASM-NEXT:	.quad	.Lfunc_end0
 ; BB-SECTIONS-ASM-NEXT:	.quad	0
 ; BB-SECTIONS-ASM-NEXT:	.quad	0
+; BB-SECTIONS-LINE-TABLE:      {{.*}} 1 0 1 0 0 is_stmt
+; BB-SECTIONS-LINE-TABLE-NEXT: {{.*}} 2 9 1 0 0 is_stmt prologue_end
+; BB-SECTIONS-LINE-TABLE-NEXT: {{.*}} 2 7 1 0 0
+; BB-SECTIONS-LINE-TABLE-NEXT: {{.*}} 3 5 1 0 0 is_stmt
+; BB-SECTIONS-LINE-TABLE-NEXT: {{.*}} 5 5 1 0 0 is_stmt
+; BB-SECTIONS-LINE-TABLE-NEXT: {{.*}} 6 1 1 0 0 is_stmt
+; BB-SECTIONS-LINE-TABLE-NEXT: {{.*}} 6 1 1 0 0 is_stmt end_sequence
 
 ; Function Attrs: noinline nounwind optnone uwtable
 define dso_local i32 @_Z3fooi(i32 %0) !dbg !7 {


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