llvm-6502/test/Transforms/LoopIndexSplit/OneIterLoop-2007-08-17.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

68 lines
2.8 KiB
LLVM

; Loop is elimianted
; RUN: opt < %s -loop-index-split -disable-output -stats |& \
; RUN: grep "loop-index-split" | count 1
%struct.anon = type { i32 }
@S1 = external global i32 ; <i32*> [#uses=1]
@W1 = external global i32 ; <i32*> [#uses=1]
@Y = weak global [100 x %struct.anon] zeroinitializer, align 32 ; <[100 x %struct.anon]*> [#uses=1]
@ti = external global i32 ; <i32*> [#uses=1]
@T2 = external global [100 x [100 x i32]] ; <[100 x [100 x i32]]*> [#uses=1]
@d = external global i32 ; <i32*> [#uses=1]
@T1 = external global i32 ; <i32*> [#uses=2]
@N2 = external global i32 ; <i32*> [#uses=2]
define void @foo() {
entry:
%tmp = load i32* @S1, align 4 ; <i32> [#uses=4]
%tmp266 = load i32* @N2, align 4 ; <i32> [#uses=1]
%tmp288 = icmp ult i32 %tmp, %tmp266 ; <i1> [#uses=1]
br i1 %tmp288, label %bb.preheader, label %return
bb.preheader: ; preds = %entry
%tmp1 = load i32* @W1, align 4 ; <i32> [#uses=1]
%tmp13 = load i32* @ti, align 4 ; <i32> [#uses=1]
%tmp18 = load i32* @d, align 4 ; <i32> [#uses=1]
%tmp26 = load i32* @N2, align 4 ; <i32> [#uses=2]
%T1.promoted = load i32* @T1 ; <i32> [#uses=1]
%tmp2 = add i32 %tmp, 1 ; <i32> [#uses=2]
%tmp4 = icmp ugt i32 %tmp2, %tmp26 ; <i1> [#uses=1]
%umax = select i1 %tmp4, i32 %tmp2, i32 %tmp26 ; <i32> [#uses=1]
%tmp5 = sub i32 0, %tmp ; <i32> [#uses=1]
%tmp6 = add i32 %umax, %tmp5 ; <i32> [#uses=1]
br label %bb
bb: ; preds = %bb25, %bb.preheader
%indvar = phi i32 [ 0, %bb.preheader ], [ %indvar.next, %bb25 ] ; <i32> [#uses=2]
%T1.tmp.1 = phi i32 [ %T1.promoted, %bb.preheader ], [ %T1.tmp.0, %bb25 ] ; <i32> [#uses=3]
%tj.01.0 = add i32 %indvar, %tmp ; <i32> [#uses=3]
%tmp3 = icmp eq i32 %tj.01.0, %tmp1 ; <i1> [#uses=1]
br i1 %tmp3, label %cond_true, label %bb25
cond_true: ; preds = %bb
%tmp7 = getelementptr [100 x %struct.anon]* @Y, i32 0, i32 %tj.01.0, i32 0 ; <i32*> [#uses=1]
%tmp8 = load i32* %tmp7, align 4 ; <i32> [#uses=1]
%tmp9 = icmp sgt i32 %tmp8, 0 ; <i1> [#uses=1]
br i1 %tmp9, label %cond_true12, label %bb25
cond_true12: ; preds = %cond_true
%tmp16 = getelementptr [100 x [100 x i32]]* @T2, i32 0, i32 %tmp13, i32 %tj.01.0 ; <i32*> [#uses=1]
%tmp17 = load i32* %tmp16, align 4 ; <i32> [#uses=1]
%tmp19 = mul i32 %tmp18, %tmp17 ; <i32> [#uses=1]
%tmp21 = add i32 %tmp19, %T1.tmp.1 ; <i32> [#uses=1]
br label %bb25
bb25: ; preds = %cond_true12, %cond_true, %bb
%T1.tmp.0 = phi i32 [ %T1.tmp.1, %bb ], [ %T1.tmp.1, %cond_true ], [ %tmp21, %cond_true12 ] ; <i32> [#uses=2]
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2]
%exitcond = icmp ne i32 %indvar.next, %tmp6 ; <i1> [#uses=1]
br i1 %exitcond, label %bb, label %return.loopexit
return.loopexit: ; preds = %bb25
%T1.tmp.0.lcssa = phi i32 [ %T1.tmp.0, %bb25 ] ; <i32> [#uses=1]
store i32 %T1.tmp.0.lcssa, i32* @T1
br label %return
return: ; preds = %return.loopexit, %entry
ret void
}