1; RUN: opt < %s -add-discriminators -S | FileCheck %s 2 3; Basic DWARF discriminator test. All the instructions in block 4; 'if.then' should have a different discriminator value than 5; the conditional branch at the end of block 'entry'. 6; 7; Original code: 8; 9; void foo(int i) { 10; int x; 11; if (i < 10) x = i; 12; } 13 14define void @foo(i32 %i) #0 { 15entry: 16 %i.addr = alloca i32, align 4 17 %x = alloca i32, align 4 18 store i32 %i, i32* %i.addr, align 4 19 %0 = load i32* %i.addr, align 4, !dbg !10 20 %cmp = icmp slt i32 %0, 10, !dbg !10 21 br i1 %cmp, label %if.then, label %if.end, !dbg !10 22 23if.then: ; preds = %entry 24 %1 = load i32* %i.addr, align 4, !dbg !10 25; CHECK: %1 = load i32* %i.addr, align 4, !dbg !12 26 27 store i32 %1, i32* %x, align 4, !dbg !10 28; CHECK: store i32 %1, i32* %x, align 4, !dbg !12 29 30 br label %if.end, !dbg !10 31; CHECK: br label %if.end, !dbg !12 32 33if.end: ; preds = %if.then, %entry 34 ret void, !dbg !12 35} 36 37attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 38 39!llvm.dbg.cu = !{!0} 40!llvm.module.flags = !{!7, !8} 41!llvm.ident = !{!9} 42 43!0 = !{!"0x11\0012\00clang version 3.5 \000\00\000\00\000", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [basic.c] [DW_LANG_C99] 44!1 = !{!"basic.c", !"."} 45!2 = !{} 46!3 = !{!4} 47!4 = !{!"0x2e\00foo\00foo\00\001\000\001\000\006\00256\000\001", !1, !5, !6, null, void (i32)* @foo, null, null, !2} ; [ DW_TAG_subprogram ] [line 1] [def] [foo] 48!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [basic.c] 49!6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] 50!7 = !{i32 2, !"Dwarf Version", i32 4} 51!8 = !{i32 1, !"Debug Info Version", i32 2} 52!9 = !{!"clang version 3.5 "} 53!10 = !MDLocation(line: 3, scope: !11) 54!11 = !{!"0xb\003\000\000", !1, !4} ; [ DW_TAG_lexical_block ] [basic.c] 55!12 = !MDLocation(line: 4, scope: !4) 56 57; CHECK: !12 = !MDLocation(line: 3, scope: !13) 58; CHECK: !13 = !{!"0xb\001", !1, !11} ; [ DW_TAG_lexical_block ] [./basic.c] 59; CHECK: !14 = !MDLocation(line: 4, scope: !4) 60