From 7fe1decf3a94a32e43919a1c411363d98b75283d Mon Sep 17 00:00:00 2001 From: Devang Patel Date: Wed, 19 Nov 2008 18:56:50 +0000 Subject: If there are two consecutive llvm.dbg.stoppoint calls then it is likely that the optimizer deleted code in between these two intrinsics. Keep only the last llvm.dbg.stoppoint in this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59657 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/DebugInfo/2008-11-19-InstCombine.ll | 44 ++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 test/DebugInfo/2008-11-19-InstCombine.ll (limited to 'test/DebugInfo') diff --git a/test/DebugInfo/2008-11-19-InstCombine.ll b/test/DebugInfo/2008-11-19-InstCombine.ll new file mode 100644 index 0000000000..f99b964ba6 --- /dev/null +++ b/test/DebugInfo/2008-11-19-InstCombine.ll @@ -0,0 +1,44 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep stoppoint | count 3 +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "i386-apple-darwin9.5" + %llvm.dbg.anchor.type = type { i32, i32 } + %llvm.dbg.basictype.type = type { i32, { }*, i8*, { }*, i32, i64, i64, i64, i32, i32 } + %llvm.dbg.compile_unit.type = type { i32, { }*, i32, i8*, i8*, i8* } + %llvm.dbg.subprogram.type = type { i32, { }*, { }*, i8*, i8*, i8*, { }*, i32, { }*, i1, i1 } + %llvm.dbg.variable.type = type { i32, { }*, i8*, { }*, i32, { }* } +@llvm.dbg.subprogram = internal constant %llvm.dbg.subprogram.type { i32 393262, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.subprograms to { }*), { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i8* getelementptr ([4 x i8]* @.str3, i32 0, i32 0), i8* getelementptr ([4 x i8]* @.str3, i32 0, i32 0), i8* null, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32 2, { }* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to { }*), i1 false, i1 true }, section "llvm.metadata" ; <%llvm.dbg.subprogram.type*> [#uses=1] +@llvm.dbg.subprograms = linkonce constant %llvm.dbg.anchor.type { i32 393216, i32 46 }, section "llvm.metadata" ; <%llvm.dbg.anchor.type*> [#uses=1] +@llvm.dbg.compile_unit = internal constant %llvm.dbg.compile_unit.type { i32 393233, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.compile_units to { }*), i32 1, i8* getelementptr ([7 x i8]* @.str, i32 0, i32 0), i8* getelementptr ([6 x i8]* @.str1, i32 0, i32 0), i8* getelementptr ([55 x i8]* @.str2, i32 0, i32 0) }, section "llvm.metadata" ; <%llvm.dbg.compile_unit.type*> [#uses=1] +@llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 393216, i32 17 }, section "llvm.metadata" ; <%llvm.dbg.anchor.type*> [#uses=1] +@.str = internal constant [7 x i8] c"adce.c\00", section "llvm.metadata" ; <[7 x i8]*> [#uses=1] +@.str1 = internal constant [6 x i8] c"/tmp/\00", section "llvm.metadata" ; <[6 x i8]*> [#uses=1] +@.str2 = internal constant [55 x i8] c"4.2.1 (Based on Apple Inc. build 5623) (LLVM build 00)\00", section "llvm.metadata" ; <[55 x i8]*> [#uses=1] +@.str3 = internal constant [4 x i8] c"foo\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1] +@llvm.dbg.basictype = internal constant %llvm.dbg.basictype.type { i32 393252, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i8* getelementptr ([4 x i8]* @.str4, i32 0, i32 0), { }* null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5 }, section "llvm.metadata" ; <%llvm.dbg.basictype.type*> [#uses=1] +@.str4 = internal constant [4 x i8] c"int\00", section "llvm.metadata" ; <[4 x i8]*> [#uses=1] +@llvm.dbg.variable = internal constant %llvm.dbg.variable.type { i32 393472, { }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*), i8* getelementptr ([2 x i8]* @.str5, i32 0, i32 0), { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*), i32 3, { }* bitcast (%llvm.dbg.basictype.type* @llvm.dbg.basictype to { }*) }, section "llvm.metadata" ; <%llvm.dbg.variable.type*> [#uses=0] +@.str5 = internal constant [2 x i8] c"i\00", section "llvm.metadata" ; <[2 x i8]*> [#uses=1] + +define i32 @foo() nounwind { +entry: + %"alloca point" = bitcast i32 0 to i32 ; [#uses=0] + call void @llvm.dbg.func.start({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*)) + call void @llvm.dbg.stoppoint(i32 3, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + call void @llvm.dbg.stoppoint(i32 4, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + %0 = mul i32 4, 84 ; [#uses=0] + call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + br label %return + +return: ; preds = %entry + call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + call void @llvm.dbg.region.end({ }* bitcast (%llvm.dbg.subprogram.type* @llvm.dbg.subprogram to { }*)) + ret i32 42 +} + +declare void @llvm.dbg.func.start({ }*) nounwind + +declare void @llvm.dbg.declare({ }*, { }*) nounwind + +declare void @llvm.dbg.stoppoint(i32, i32, { }*) nounwind + +declare void @llvm.dbg.region.end({ }*) nounwind -- cgit v1.2.3