Adding tests for DebugIR pass
- lit tests verify that each line of input LLVM IR gets a !dbg node and a
corresponding entry of metadata that contains the line number
- unit tests verify that DebugIR works as advertised in the interface
- refactored some useful IR generation functionality from the MCJIT unit tests
so it can be reused
llvm-svn: 185212
diff --git a/llvm/test/Transforms/DebugIR/crash.ll b/llvm/test/Transforms/DebugIR/crash.ll
new file mode 100644
index 0000000..f4a88d7
--- /dev/null
+++ b/llvm/test/Transforms/DebugIR/crash.ll
@@ -0,0 +1,42 @@
+; ModuleID = 'crash.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-pc-linux-gnu"
+
+@.str = private unnamed_addr constant [18 x i8] c"Hello, segfault!\0A\00", align 1
+@.str1 = private unnamed_addr constant [14 x i8] c"Now crash %d\0A\00", align 1
+
+; Function Attrs: nounwind uwtable
+define i32 @main(i32 %argc, i8** %argv) #0 {
+ %1 = alloca i32, align 4 ;CHECK: !dbg
+ %2 = alloca i32, align 4 ;CHECK-NEXT: !dbg
+ %3 = alloca i8**, align 8 ;CHECK-NEXT: !dbg
+ %null_ptr = alloca i32*, align 8 ;CHECK-NEXT: !dbg
+ store i32 0, i32* %1 ;CHECK-NEXT: !dbg
+ store i32 %argc, i32* %2, align 4 ;CHECK-NEXT: !dbg
+ store i8** %argv, i8*** %3, align 8 ;CHECK-NEXT: !dbg
+ store i32* null, i32** %null_ptr, align 8 ;CHECK-NEXT: !dbg
+ %4 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([18 x i8]* @.str, i32 0, i32 0)) ;CHECK-NEXT: !dbg
+ %5 = load i32** %null_ptr, align 8 ;CHECK-NEXT: !dbg
+ %6 = load i32* %5, align 4 ;CHECK-NEXT: !dbg
+ %7 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([14 x i8]* @.str1, i32 0, i32 0), i32 %6) ;CHECK-NEXT: !dbg
+ %8 = load i32* %2, align 4 ;CHECK-NEXT: !dbg
+ ret i32 %8 ;CHECK-NEXT: !dbg
+}
+
+declare i32 @printf(i8*, ...) #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 = { "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" }
+
+; CHECK: = metadata !{i32 14,
+; CHECK-NEXT: = metadata !{i32 15,
+; CHECK-NEXT: = metadata !{i32 16,
+; CHECK-NEXT: = metadata !{i32 17,
+; CHECK-NEXT: = metadata !{i32 18,
+; CHECK-NEXT: = metadata !{i32 19,
+; CHECK-NEXT: = metadata !{i32 20,
+; CHECK-NEXT: = metadata !{i32 21,
+; CHECK-NEXT: = metadata !{i32 22,
+; CHECK-NEXT: = metadata !{i32 23,
+
+; RUN: opt %s -debug-ir -S | FileCheck %s