1 ; RUN: llc -stop-after=branch-folder < %s | FileCheck %s
3 ; bb2 and bb3 in the IR below will be tail-merged into a single basic block.
4 ; As br instructions in bb2 and bb3 have the same debug location, make sure that
5 ; the branch instruction in the merged basic block still maintains the debug
8 ; CHECK: [[DLOC:![0-9]+]] = !DILocation(line: 2, column: 2, scope: !{{[0-9]+}})
9 ; CHECK: TEST64rr{{.*}}$rsi, renamable $rsi, implicit-def $eflags
10 ; CHECK-NEXT: JCC_1{{.*}}, debug-location [[DLOC]]
12 target triple = "x86_64-unknown-linux-gnu"
14 define i32 @foo(i1 %b, i8* %p) {
16 br i1 %b, label %bb2, label %bb3
19 %a1 = icmp eq i8* %p, null
20 br i1 %a1, label %bb4, label %bb5, !dbg !6
23 %a2 = icmp eq i8* %p, null
24 br i1 %a2, label %bb4, label %bb5, !dbg !6
34 !llvm.module.flags = !{!2, !3}
36 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1)
37 !1 = !DIFile(filename: "foo.c", directory: "b/")
38 !2 = !{i32 2, !"Dwarf Version", i32 4}
39 !3 = !{i32 2, !"Debug Info Version", i32 3}
40 !4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0)
41 !5 = distinct !DILexicalBlock(scope: !4, file: !1, line: 1, column: 1)
42 !6 = !DILocation(line: 2, column: 2, scope: !5)