From d96c60df3fb639cc8ab213ae72b888c7fb96b3d6 Mon Sep 17 00:00:00 2001 From: Devang Patel Date: Fri, 6 Feb 2009 06:19:06 +0000 Subject: [PATCH] Ignore DbgInfoIntrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63923 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/LoopIndexSplit.cpp | 4 +- .../SplitValue-2007-08-24-dbg.ll | 71 +++++++++++++++++++ 2 files changed, 74 insertions(+), 1 deletion(-) create mode 100644 test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll diff --git a/lib/Transforms/Scalar/LoopIndexSplit.cpp b/lib/Transforms/Scalar/LoopIndexSplit.cpp index cbe507cfa99..f625c13d453 100644 --- a/lib/Transforms/Scalar/LoopIndexSplit.cpp +++ b/lib/Transforms/Scalar/LoopIndexSplit.cpp @@ -42,6 +42,7 @@ #define DEBUG_TYPE "loop-index-split" #include "llvm/Transforms/Scalar.h" +#include "llvm/IntrinsicInst.h" #include "llvm/Analysis/LoopPass.h" #include "llvm/Analysis/ScalarEvolutionExpander.h" #include "llvm/Analysis/Dominators.h" @@ -1104,7 +1105,8 @@ bool LoopIndexSplit::cleanBlock(BasicBlock *BB) { Instruction *I = BI; if (isa(I) || I == Terminator || I == ExitCondition - || I == SplitCondition || IVBasedValues.count(I)) + || I == SplitCondition || IVBasedValues.count(I) + || isa(I)) continue; if (I->mayWriteToMemory()) diff --git a/test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll b/test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll new file mode 100644 index 00000000000..3b237bb1f14 --- /dev/null +++ b/test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll @@ -0,0 +1,71 @@ +; Split loop. Save last value. Split value is off by one in this example. +; RUN: llvm-as < %s | opt -loop-index-split -disable-output -stats |& \ +; RUN: grep "loop-index-split" | count 1 + + %llvm.dbg.anchor.type = type { i32, i32 } + %llvm.dbg.compile_unit.type = type { i32, { }*, i32, i8*, i8*, i8*, i1, i1, i8* } + +@llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 17 }, section "llvm.metadata" ; + +@.str = internal constant [4 x i8] c"a.c\00", section "llvm.metadata" ; <[4 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 5636) (LLVM build 00)\00", section "llvm.metadata" ; <[55 x i8]*> [#uses=1] +@llvm.dbg.compile_unit = internal constant %llvm.dbg.compile_unit.type { i32 458769, { }* bitcast (%llvm.dbg.anchor.type* @llvm.dbg.compile_units to { }*), i32 1, i8* getelementptr ([4 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), i1 true, i1 false, i8* null }, section "llvm.metadata" ; <%llvm.dbg.compile_unit.type*> [#uses=1] + +declare void @llvm.dbg.stoppoint(i32, i32, { }*) nounwind + + +@k = external global i32 ; [#uses=2] + +define void @foobar(i32 %a, i32 %b) { +entry: + br label %bb + +bb: ; preds = %cond_next16, %entry + %i.01.0 = phi i32 [ 0, %entry ], [ %tmp18, %cond_next16 ] ; [#uses=5] + %tsum.18.0 = phi i32 [ 42, %entry ], [ %tsum.013.1, %cond_next16 ] ; [#uses=3] + %tmp1 = icmp sgt i32 %i.01.0, 50 ; [#uses=1] +call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + br i1 %tmp1, label %cond_true, label %cond_false + +cond_true: ; preds = %bb + %tmp4 = tail call i32 @foo( i32 %i.01.0 ) ; [#uses=1] + %tmp6 = add i32 %tmp4, %tsum.18.0 ; [#uses=2] + %tmp914 = load i32* @k, align 4 ; [#uses=1] + %tmp1015 = icmp eq i32 %tmp914, 0 ; [#uses=1] +call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + br i1 %tmp1015, label %cond_next16, label %cond_true13 + +cond_false: ; preds = %bb + %tmp8 = tail call i32 @bar( i32 %i.01.0 ) ; [#uses=0] + %tmp9 = load i32* @k, align 4 ; [#uses=1] + %tmp10 = icmp eq i32 %tmp9, 0 ; [#uses=1] +call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + br i1 %tmp10, label %cond_next16, label %cond_true13 + +cond_true13: ; preds = %cond_false, %cond_true + %tsum.013.0 = phi i32 [ %tmp6, %cond_true ], [ %tsum.18.0, %cond_false ] ; [#uses=1] + %tmp15 = tail call i32 @bar( i32 %i.01.0 ) ; [#uses=0] +call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + br label %cond_next16 + +cond_next16: ; preds = %cond_false, %cond_true, %cond_true13 + %tsum.013.1 = phi i32 [ %tsum.013.0, %cond_true13 ], [ %tmp6, %cond_true ], [ %tsum.18.0, %cond_false ] ; [#uses=2] + %tmp18 = add i32 %i.01.0, 1 ; [#uses=3] + %tmp21 = icmp slt i32 %tmp18, 100 ; [#uses=1] +call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + br i1 %tmp21, label %bb, label %bb24 + +bb24: ; preds = %cond_next16 + %tmp18.lcssa = phi i32 [ %tmp18, %cond_next16 ] ; [#uses=1] + %tsum.013.1.lcssa = phi i32 [ %tsum.013.1, %cond_next16 ] ; [#uses=1] + %tmp27 = tail call i32 @t( i32 %tmp18.lcssa, i32 %tsum.013.1.lcssa ) ; [#uses=0] +call void @llvm.dbg.stoppoint(i32 5, i32 0, { }* bitcast (%llvm.dbg.compile_unit.type* @llvm.dbg.compile_unit to { }*)) + ret void +} + +declare i32 @foo(i32) + +declare i32 @bar(i32) + +declare i32 @t(i32, i32)