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llvm-mirror/test/Transforms/LoopRotate/multiple-exits.ll
Stephen Lin cf082ae903 Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 
This update was done with the following bash script:

  find test/Transforms -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc" $NAME; then
      TEMP=`mktemp -t temp`
      cp $NAME $TEMP
      sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
      while read FUNC; do
        sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
      done
      mv $TEMP $NAME
    fi
  done

llvm-svn: 186268
2013-07-14 01:42:54 +00:00

237 lines
8.5 KiB
LLVM
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; RUN: opt -S -loop-rotate < %s -verify-loop-info -verify-dom-info | FileCheck %s
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-apple-macosx10.8.0"
; PR7447
define i32 @test1([100 x i32]* nocapture %a) nounwind readonly {
entry:
br label %for.cond
for.cond: ; preds = %for.cond1, %entry
%sum.0 = phi i32 [ 0, %entry ], [ %sum.1, %for.cond1 ]
%i.0 = phi i1 [ true, %entry ], [ false, %for.cond1 ]
br i1 %i.0, label %for.cond1, label %return
for.cond1: ; preds = %for.cond, %land.rhs
%sum.1 = phi i32 [ %add, %land.rhs ], [ %sum.0, %for.cond ]
%i.1 = phi i32 [ %inc, %land.rhs ], [ 0, %for.cond ]
%cmp2 = icmp ult i32 %i.1, 100
br i1 %cmp2, label %land.rhs, label %for.cond
land.rhs: ; preds = %for.cond1
%conv = zext i32 %i.1 to i64
%arrayidx = getelementptr inbounds [100 x i32]* %a, i64 0, i64 %conv
%0 = load i32* %arrayidx, align 4
%add = add i32 %0, %sum.1
%cmp4 = icmp ugt i32 %add, 1000
%inc = add i32 %i.1, 1
br i1 %cmp4, label %return, label %for.cond1
return: ; preds = %for.cond, %land.rhs
%retval.0 = phi i32 [ 1000, %land.rhs ], [ %sum.0, %for.cond ]
ret i32 %retval.0
; CHECK-LABEL: @test1(
; CHECK: for.cond1.preheader:
; CHECK: %sum.04 = phi i32 [ 0, %entry ], [ %sum.1.lcssa, %for.cond.loopexit ]
; CHECK: br label %for.cond1
; CHECK: for.cond1:
; CHECK: %sum.1 = phi i32 [ %add, %land.rhs ], [ %sum.04, %for.cond1.preheader ]
; CHECK: %i.1 = phi i32 [ %inc, %land.rhs ], [ 0, %for.cond1.preheader ]
; CHECK: %cmp2 = icmp ult i32 %i.1, 100
; CHECK: br i1 %cmp2, label %land.rhs, label %for.cond.loopexit
}
define void @test2(i32 %x) nounwind {
entry:
br label %for.cond
for.cond: ; preds = %if.end, %entry
%i.0 = phi i32 [ 0, %entry ], [ %inc, %if.end ]
%cmp = icmp eq i32 %i.0, %x
br i1 %cmp, label %return.loopexit, label %for.body
for.body: ; preds = %for.cond
%call = tail call i32 @foo(i32 %i.0) nounwind
%tobool = icmp eq i32 %call, 0
br i1 %tobool, label %if.end, label %a
if.end: ; preds = %for.body
%call1 = tail call i32 @foo(i32 42) nounwind
%inc = add i32 %i.0, 1
br label %for.cond
a: ; preds = %for.body
%call2 = tail call i32 @bar(i32 1) nounwind
br label %return
return.loopexit: ; preds = %for.cond
br label %return
return: ; preds = %return.loopexit, %a
ret void
; CHECK-LABEL: @test2(
; CHECK: if.end:
; CHECK: %inc = add i32 %i.02, 1
; CHECK: %cmp = icmp eq i32 %inc, %x
; CHECK: br i1 %cmp, label %for.cond.return.loopexit_crit_edge, label %for.body
}
declare i32 @foo(i32)
declare i32 @bar(i32)
@_ZTIi = external constant i8*
; Verify dominators.
define void @test3(i32 %x) {
entry:
%cmp2 = icmp eq i32 0, %x
br i1 %cmp2, label %try.cont.loopexit, label %for.body.lr.ph
for.body.lr.ph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.lr.ph, %for.inc
%i.03 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ]
invoke void @_Z3fooi(i32 %i.03)
to label %for.inc unwind label %lpad
for.inc: ; preds = %for.body
%inc = add i32 %i.03, 1
%cmp = icmp eq i32 %inc, %x
br i1 %cmp, label %for.cond.try.cont.loopexit_crit_edge, label %for.body
lpad: ; preds = %for.body
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
catch i8* bitcast (i8** @_ZTIi to i8*)
%1 = extractvalue { i8*, i32 } %0, 0
%2 = extractvalue { i8*, i32 } %0, 1
%3 = tail call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) nounwind
%matches = icmp eq i32 %2, %3
br i1 %matches, label %catch, label %eh.resume
catch: ; preds = %lpad
%4 = tail call i8* @__cxa_begin_catch(i8* %1) nounwind
br i1 true, label %invoke.cont2.loopexit, label %for.body.i.lr.ph
for.body.i.lr.ph: ; preds = %catch
br label %for.body.i
for.body.i: ; preds = %for.body.i.lr.ph, %for.inc.i
%i.0.i1 = phi i32 [ 0, %for.body.i.lr.ph ], [ %inc.i, %for.inc.i ]
invoke void @_Z3fooi(i32 %i.0.i1)
to label %for.inc.i unwind label %lpad.i
for.inc.i: ; preds = %for.body.i
%inc.i = add i32 %i.0.i1, 1
%cmp.i = icmp eq i32 %inc.i, 0
br i1 %cmp.i, label %for.cond.i.invoke.cont2.loopexit_crit_edge, label %for.body.i
lpad.i: ; preds = %for.body.i
%5 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
catch i8* bitcast (i8** @_ZTIi to i8*)
%6 = extractvalue { i8*, i32 } %5, 0
%7 = extractvalue { i8*, i32 } %5, 1
%matches.i = icmp eq i32 %7, %3
br i1 %matches.i, label %catch.i, label %lpad1.body
catch.i: ; preds = %lpad.i
%8 = tail call i8* @__cxa_begin_catch(i8* %6) nounwind
invoke void @test3(i32 0)
to label %invoke.cont2.i unwind label %lpad1.i
invoke.cont2.i: ; preds = %catch.i
tail call void @__cxa_end_catch() nounwind
br label %invoke.cont2
lpad1.i: ; preds = %catch.i
%9 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*)
cleanup
%10 = extractvalue { i8*, i32 } %9, 0
%11 = extractvalue { i8*, i32 } %9, 1
tail call void @__cxa_end_catch() nounwind
br label %lpad1.body
for.cond.i.invoke.cont2.loopexit_crit_edge: ; preds = %for.inc.i
br label %invoke.cont2.loopexit
invoke.cont2.loopexit: ; preds = %for.cond.i.invoke.cont2.loopexit_crit_edge, %catch
br label %invoke.cont2
invoke.cont2: ; preds = %invoke.cont2.loopexit, %invoke.cont2.i
tail call void @__cxa_end_catch() nounwind
br label %try.cont
for.cond.try.cont.loopexit_crit_edge: ; preds = %for.inc
br label %try.cont.loopexit
try.cont.loopexit: ; preds = %for.cond.try.cont.loopexit_crit_edge, %entry
br label %try.cont
try.cont: ; preds = %try.cont.loopexit, %invoke.cont2
ret void
lpad1.body: ; preds = %lpad1.i, %lpad.i
%exn.slot.0.i = phi i8* [ %10, %lpad1.i ], [ %6, %lpad.i ]
%ehselector.slot.0.i = phi i32 [ %11, %lpad1.i ], [ %7, %lpad.i ]
tail call void @__cxa_end_catch() nounwind
br label %eh.resume
eh.resume: ; preds = %lpad1.body, %lpad
%exn.slot.0 = phi i8* [ %exn.slot.0.i, %lpad1.body ], [ %1, %lpad ]
%ehselector.slot.0 = phi i32 [ %ehselector.slot.0.i, %lpad1.body ], [ %2, %lpad ]
%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn.slot.0, 0
%lpad.val5 = insertvalue { i8*, i32 } %lpad.val, i32 %ehselector.slot.0, 1
resume { i8*, i32 } %lpad.val5
}
declare void @_Z3fooi(i32)
declare i32 @__gxx_personality_v0(...)
declare i32 @llvm.eh.typeid.for(i8*) nounwind readnone
declare i8* @__cxa_begin_catch(i8*)
declare void @__cxa_end_catch()
define void @test4() nounwind uwtable {
entry:
br label %"7"
"3": ; preds = %"7"
br i1 undef, label %"31", label %"4"
"4": ; preds = %"3"
%. = select i1 undef, float 0x3F50624DE0000000, float undef
%0 = add i32 %1, 1
br label %"7"
"7": ; preds = %"4", %entry
%1 = phi i32 [ %0, %"4" ], [ 0, %entry ]
%2 = icmp slt i32 %1, 100
br i1 %2, label %"3", label %"8"
"8": ; preds = %"7"
br i1 undef, label %"9", label %"31"
"9": ; preds = %"8"
br label %"33"
"27": ; preds = %"31"
unreachable
"31": ; preds = %"8", %"3"
br i1 undef, label %"27", label %"32"
"32": ; preds = %"31"
br label %"33"
"33": ; preds = %"32", %"9"
ret void
}
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