1; RUN: opt < %s -add-discriminators -S | FileCheck %s 2 3; Discriminator support for multiple CFG paths on the same line. 4; 5; void foo(int i) { 6; int x; 7; if (i < 10) x = i; else x = -i; 8; } 9; 10; The two stores inside the if-then-else line must have different discriminator 11; values. 12 13define void @foo(i32 %i) #0 { 14entry: 15 %i.addr = alloca i32, align 4 16 %x = alloca i32, align 4 17 store i32 %i, i32* %i.addr, align 4 18 %0 = load i32* %i.addr, align 4, !dbg !10 19 %cmp = icmp slt i32 %0, 10, !dbg !10 20 br i1 %cmp, label %if.then, label %if.else, !dbg !10 21 22if.then: ; preds = %entry 23 %1 = load i32* %i.addr, align 4, !dbg !10 24; CHECK: %1 = load i32* %i.addr, align 4, !dbg !12 25 26 store i32 %1, i32* %x, align 4, !dbg !10 27; CHECK: store i32 %1, i32* %x, align 4, !dbg !12 28 29 br label %if.end, !dbg !10 30; CHECK: br label %if.end, !dbg !12 31 32if.else: ; preds = %entry 33 %2 = load i32* %i.addr, align 4, !dbg !10 34; CHECK: %2 = load i32* %i.addr, align 4, !dbg !14 35 36 %sub = sub nsw i32 0, %2, !dbg !10 37; CHECK: %sub = sub nsw i32 0, %2, !dbg !14 38 39 store i32 %sub, i32* %x, align 4, !dbg !10 40; CHECK: store i32 %sub, i32* %x, align 4, !dbg !14 41 42 br label %if.end 43 44if.end: ; preds = %if.else, %if.then 45 ret void, !dbg !12 46} 47 48attributes #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" } 49 50!llvm.dbg.cu = !{!0} 51!llvm.module.flags = !{!7, !8} 52!llvm.ident = !{!9} 53 54!0 = !{!"0x11\0012\00clang version 3.5 (trunk 199750) (llvm/trunk 199751)\000\00\000\00\000", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [multiple.c] [DW_LANG_C99] 55!1 = !{!"multiple.c", !"."} 56!2 = !{i32 0} 57!3 = !{!4} 58!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] 59!5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [multiple.c] 60!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 ] 61!7 = !{i32 2, !"Dwarf Version", i32 4} 62!8 = !{i32 1, !"Debug Info Version", i32 2} 63!9 = !{!"clang version 3.5 (trunk 199750) (llvm/trunk 199751)"} 64!10 = !MDLocation(line: 3, scope: !11) 65!11 = !{!"0xb\003\000\000", !1, !4} ; [ DW_TAG_lexical_block ] [multiple.c] 66!12 = !MDLocation(line: 4, scope: !4) 67 68; CHECK: !12 = !MDLocation(line: 3, scope: !13) 69; CHECK: !13 = !{!"0xb\001", !1, !11} ; [ DW_TAG_lexical_block ] [./multiple.c] 70; CHECK: !14 = !MDLocation(line: 3, scope: !15) 71; CHECK: !15 = !{!"0xb\002", !1, !11} ; [ DW_TAG_lexical_block ] [./multiple.c] 72