[llvm-commits] [llvm] r63974 - in /llvm/branches/Apple/Dib: lib/Transforms/Scalar/LoopIndexSplit.cpp test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll

Bill Wendling isanbard at gmail.com
Fri Feb 6 14:43:54 PST 2009


Author: void
Date: Fri Feb  6 16:43:54 2009
New Revision: 63974

URL: http://llvm.org/viewvc/llvm-project?rev=63974&view=rev
Log:
Pull r63923 into Dib:

Ignore DbgInfoIntrinsics.

Added:
    llvm/branches/Apple/Dib/test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll
Modified:
    llvm/branches/Apple/Dib/lib/Transforms/Scalar/LoopIndexSplit.cpp

Modified: llvm/branches/Apple/Dib/lib/Transforms/Scalar/LoopIndexSplit.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Dib/lib/Transforms/Scalar/LoopIndexSplit.cpp?rev=63974&r1=63973&r2=63974&view=diff

==============================================================================
--- llvm/branches/Apple/Dib/lib/Transforms/Scalar/LoopIndexSplit.cpp (original)
+++ llvm/branches/Apple/Dib/lib/Transforms/Scalar/LoopIndexSplit.cpp Fri Feb  6 16:43:54 2009
@@ -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 @@
     Instruction *I = BI;
 
     if (isa<PHINode>(I) || I == Terminator || I == ExitCondition
-        || I == SplitCondition || IVBasedValues.count(I))
+        || I == SplitCondition || IVBasedValues.count(I) 
+        || isa<DbgInfoIntrinsic>(I))
       continue;
 
     if (I->mayWriteToMemory())

Added: llvm/branches/Apple/Dib/test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Dib/test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll?rev=63974&view=auto

==============================================================================
--- llvm/branches/Apple/Dib/test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll (added)
+++ llvm/branches/Apple/Dib/test/Transforms/LoopIndexSplit/SplitValue-2007-08-24-dbg.ll Fri Feb  6 16:43:54 2009
@@ -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* }
+
+ at llvm.dbg.compile_units = linkonce constant %llvm.dbg.anchor.type { i32 458752, i32 17 }, section "llvm.metadata"		; 
+
+ at .str = internal constant [4 x i8] c"a.c\00", section "llvm.metadata"		; <[4 x i8]*> [#uses=1]
+ at .str1 = internal constant [6 x i8] c"/tmp/\00", section "llvm.metadata"	; <[6 x i8]*> [#uses=1]
+ at .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]
+ at 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
+
+
+ at k = external global i32		; <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 ]		; <i32> [#uses=5]
+	%tsum.18.0 = phi i32 [ 42, %entry ], [ %tsum.013.1, %cond_next16 ]		; <i32> [#uses=3]
+	%tmp1 = icmp sgt i32 %i.01.0, 50		; <i1> [#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 )		; <i32> [#uses=1]
+	%tmp6 = add i32 %tmp4, %tsum.18.0		; <i32> [#uses=2]
+	%tmp914 = load i32* @k, align 4		; <i32> [#uses=1]
+	%tmp1015 = icmp eq i32 %tmp914, 0		; <i1> [#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 )		; <i32> [#uses=0]
+	%tmp9 = load i32* @k, align 4		; <i32> [#uses=1]
+	%tmp10 = icmp eq i32 %tmp9, 0		; <i1> [#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 ]		; <i32> [#uses=1]
+	%tmp15 = tail call i32 @bar( i32 %i.01.0 )		; <i32> [#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 ]		; <i32> [#uses=2]
+	%tmp18 = add i32 %i.01.0, 1		; <i32> [#uses=3]
+	%tmp21 = icmp slt i32 %tmp18, 100		; <i1> [#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 ]		; <i32> [#uses=1]
+	%tsum.013.1.lcssa = phi i32 [ %tsum.013.1, %cond_next16 ]		; <i32> [#uses=1]
+	%tmp27 = tail call i32 @t( i32 %tmp18.lcssa, i32 %tsum.013.1.lcssa )		; <i32> [#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)





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