DebugIR tests -- lit tests for the line number transform

- simple one-function case
- function-calling case
- external function calling case
- exception throwing case
- vector case

Note: these tests are somewhat coupled to the current format of debug metadata.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181469 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/DebugIR/simple.ll

@@ -0,0 +1,45 @@
+; ModuleID = 'simple.c'
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Function Attrs: nounwind uwtable
+define i32 @main(i32 %argc, i8** %argv) #0 {
+entry:
+  %retval = alloca i32, align 4
+  %argc.addr = alloca i32, align 4
+  %argv.addr = alloca i8**, align 8
+  store i32 0, i32* %retval
+  store i32 %argc, i32* %argc.addr, align 4
+  call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !13), !dbg !14
+  store i8** %argv, i8*** %argv.addr, align 8
+  call void @llvm.dbg.declare(metadata !{i8*** %argv.addr}, metadata !15), !dbg !14
+  %0 = load i32* %argc.addr, align 4, !dbg !16
+  ret i32 %0, !dbg !16
+}
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.declare(metadata, metadata) #1
+
+attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nounwind readnone }
+
+!llvm.dbg.cu = !{!0}
+
+!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/simple.c] [DW_LANG_C99]
+!1 = metadata !{metadata !"simple.c", metadata !""}
+!2 = metadata !{i32 0}
+!3 = metadata !{metadata !4}
+!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 10, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32, i8**)* @main, null, null, metadata !2, i32 11} ; [ DW_TAG_subprogram ] [line 10] [def] [scope 11] [main]
+!5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/simple.c]
+!6 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!7 = metadata !{metadata !8, metadata !8, metadata !9}
+!8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
+!9 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !10} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
+!10 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !11} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
+!11 = metadata !{i32 786470, null, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, metadata !12} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from char]
+!12 = metadata !{i32 786468, null, null, metadata !"char", i32 0, i64 8, i64 8, i64 0, i32 0, i32 6} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char]
+!13 = metadata !{i32 786689, metadata !4, metadata !"argc", metadata !5, i32 16777226, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [argc] [line 10]
+!14 = metadata !{i32 10, i32 0, metadata !4, null}
+!15 = metadata !{i32 786689, metadata !4, metadata !"argv", metadata !5, i32 33554442, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [argv] [line 10]
+!16 = metadata !{i32 12, i32 0, metadata !4, null}
+; RUN: opt < %s -debug-ir -S | FileCheck %s.check