From 504d1d2fa4103bddcc6e1ad26697029c79b4aeb7 Mon Sep 17 00:00:00 2001 From: Hal Finkel Date: Mon, 16 Jan 2012 22:53:41 +0000 Subject: [PATCH] AggressiveAntiDepBreaker needs to skip debug values because a debug value does not have a corresponding SUnit git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148260 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/AggressiveAntiDepBreaker.cpp | 3 ++ test/CodeGen/PowerPC/dbg.ll | 40 ++++++++++++++++++++++++ 2 files changed, 43 insertions(+) create mode 100644 test/CodeGen/PowerPC/dbg.ll diff --git a/lib/CodeGen/AggressiveAntiDepBreaker.cpp b/lib/CodeGen/AggressiveAntiDepBreaker.cpp index 77958d9c952..02f4afdfa59 100644 --- a/lib/CodeGen/AggressiveAntiDepBreaker.cpp +++ b/lib/CodeGen/AggressiveAntiDepBreaker.cpp @@ -780,6 +780,9 @@ unsigned AggressiveAntiDepBreaker::BreakAntiDependencies( I != E; --Count) { MachineInstr *MI = --I; + if (MI->isDebugValue()) + continue; + DEBUG(dbgs() << "Anti: "); DEBUG(MI->dump()); diff --git a/test/CodeGen/PowerPC/dbg.ll b/test/CodeGen/PowerPC/dbg.ll new file mode 100644 index 00000000000..e161cb05686 --- /dev/null +++ b/test/CodeGen/PowerPC/dbg.ll @@ -0,0 +1,40 @@ +; RUN: llc < %s -break-anti-dependencies=all -march=ppc64 -mcpu=g5 | FileCheck %s +; CHECK: main: + +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-v128:128:128-n32:64" +target triple = "powerpc64-unknown-linux-gnu" + +define i32 @main(i32 %argc, i8** nocapture %argv) nounwind readnone { +entry: + tail call void @llvm.dbg.value(metadata !{i32 %argc}, i64 0, metadata !15), !dbg !17 + tail call void @llvm.dbg.value(metadata !{i8** %argv}, i64 0, metadata !16), !dbg !18 + %add = add nsw i32 %argc, 1, !dbg !19 + ret i32 %add, !dbg !19 +} + +declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone + +!llvm.dbg.cu = !{!0} + +!0 = metadata !{i32 720913, i32 0, i32 12, metadata !"dbg.c", metadata !"/src", metadata !"clang version 3.1", i1 true, i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1} ; [ DW_TAG_compile_unit ] +!1 = metadata !{metadata !2} +!2 = metadata !{i32 0} +!3 = metadata !{metadata !4} +!4 = metadata !{metadata !5} +!5 = metadata !{i32 720942, i32 0, metadata !6, metadata !"main", metadata !"main", metadata !"", metadata !6, i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 (i32, i8**)* @main, null, null, metadata !13} ; [ DW_TAG_subprogram ] +!6 = metadata !{i32 720937, metadata !"dbg.c", metadata !"/src", null} ; [ DW_TAG_file_type ] +!7 = metadata !{i32 720917, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] +!8 = metadata !{metadata !9, metadata !9, metadata !10} +!9 = metadata !{i32 720932, null, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] +!10 = metadata !{i32 720911, null, metadata !"", null, i32 0, i64 64, i64 64, i64 0, i32 0, metadata !11} ; [ DW_TAG_pointer_type ] +!11 = metadata !{i32 720911, null, metadata !"", null, i32 0, i64 64, i64 64, i64 0, i32 0, metadata !12} ; [ DW_TAG_pointer_type ] +!12 = metadata !{i32 720932, null, metadata !"char", null, i32 0, i64 8, i64 8, i64 0, i32 0, i32 8} ; [ DW_TAG_base_type ] +!13 = metadata !{metadata !14} +!14 = metadata !{metadata !15, metadata !16} +!15 = metadata !{i32 721153, metadata !5, metadata !"argc", metadata !6, i32 16777217, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] +!16 = metadata !{i32 721153, metadata !5, metadata !"argv", metadata !6, i32 33554433, metadata !10, i32 0, i32 0} ; [ DW_TAG_arg_variable ] +!17 = metadata !{i32 1, i32 14, metadata !5, null} +!18 = metadata !{i32 1, i32 26, metadata !5, null} +!19 = metadata !{i32 2, i32 3, metadata !20, null} +!20 = metadata !{i32 720907, metadata !5, i32 1, i32 34, metadata !6, i32 0} ; [ DW_TAG_lexical_block ] + -- 2.34.1