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; RUN: opt < %s -basicaa -da -analyze -delinearize
;
; a, b, c, d, g, h;
; char *f;
; static fn1(p1) {
; char *e = p1;
; for (; d;) {
; a = 0;
; for (;; ++a)
; for (; b; ++b)
; c = e[b + a];
; }
; }
;
; fn2() {
; for (;;)
; fn1(&f[g * h]);
; }
@g = common global i32 0, align 4
@h = common global i32 0, align 4
@f = common global i8* null, align 4
@a = common global i32 0, align 4
@b = common global i32 0, align 4
@c = common global i32 0, align 4
@d = common global i32 0, align 4
define i32 @fn2() {
entry:
%.pr = load i32* @d, align 4
%phitmp = icmp eq i32 %.pr, 0
br label %for.cond
for.cond:
%0 = phi i1 [ true, %for.cond ], [ %phitmp, %entry ]
br i1 %0, label %for.cond, label %for.cond2thread-pre-split.preheader.i
for.cond2thread-pre-split.preheader.i:
%1 = load i32* @g, align 4
%2 = load i32* @h, align 4
%mul = mul nsw i32 %2, %1
%3 = load i8** @f, align 4
%.pr.pre.i = load i32* @b, align 4
br label %for.cond2thread-pre-split.i
for.cond2thread-pre-split.i:
%.pr.i = phi i32 [ 0, %for.inc5.i ], [ %.pr.pre.i, %for.cond2thread-pre-split.preheader.i ]
%storemerge.i = phi i32 [ %inc6.i, %for.inc5.i ], [ 0, %for.cond2thread-pre-split.preheader.i ]
store i32 %storemerge.i, i32* @a, align 4
%tobool31.i = icmp eq i32 %.pr.i, 0
br i1 %tobool31.i, label %for.inc5.i, label %for.body4.preheader.i
for.body4.preheader.i:
%4 = icmp slt i32 %.pr.i, -7
%add.i = add i32 %storemerge.i, %mul
br i1 %4, label %for.body4.i.preheader, label %for.body4.ur.i.preheader
for.body4.i.preheader:
%5 = sub i32 -8, %.pr.i
%6 = lshr i32 %5, 3
%7 = mul i32 %6, 8
br label %for.body4.i
for.body4.i:
%8 = phi i32 [ %inc.7.i, %for.body4.i ], [ %.pr.i, %for.body4.i.preheader ]
%arrayidx.sum1 = add i32 %add.i, %8
%arrayidx.i = getelementptr inbounds i8* %3, i32 %arrayidx.sum1
%9 = load i8* %arrayidx.i, align 1
%conv.i = sext i8 %9 to i32
store i32 %conv.i, i32* @c, align 4
%inc.i = add nsw i32 %8, 1
store i32 %inc.i, i32* @b, align 4
%arrayidx.sum2 = add i32 %add.i, %inc.i
%arrayidx.1.i = getelementptr inbounds i8* %3, i32 %arrayidx.sum2
%10 = load i8* %arrayidx.1.i, align 1
%conv.1.i = sext i8 %10 to i32
store i32 %conv.1.i, i32* @c, align 4
%inc.1.i = add nsw i32 %8, 2
store i32 %inc.1.i, i32* @b, align 4
%arrayidx.sum3 = add i32 %add.i, %inc.1.i
%arrayidx.2.i = getelementptr inbounds i8* %3, i32 %arrayidx.sum3
%11 = load i8* %arrayidx.2.i, align 1
%conv.2.i = sext i8 %11 to i32
store i32 %conv.2.i, i32* @c, align 4
%inc.2.i = add nsw i32 %8, 3
store i32 %inc.2.i, i32* @b, align 4
%arrayidx.sum4 = add i32 %add.i, %inc.2.i
%arrayidx.3.i = getelementptr inbounds i8* %3, i32 %arrayidx.sum4
%12 = load i8* %arrayidx.3.i, align 1
%conv.3.i = sext i8 %12 to i32
store i32 %conv.3.i, i32* @c, align 4
%inc.3.i = add nsw i32 %8, 4
store i32 %inc.3.i, i32* @b, align 4
%arrayidx.sum5 = add i32 %add.i, %inc.3.i
%arrayidx.4.i = getelementptr inbounds i8* %3, i32 %arrayidx.sum5
%13 = load i8* %arrayidx.4.i, align 1
%conv.4.i = sext i8 %13 to i32
store i32 %conv.4.i, i32* @c, align 4
%inc.4.i = add nsw i32 %8, 5
store i32 %inc.4.i, i32* @b, align 4
%arrayidx.sum6 = add i32 %add.i, %inc.4.i
%arrayidx.5.i = getelementptr inbounds i8* %3, i32 %arrayidx.sum6
%14 = load i8* %arrayidx.5.i, align 1
%conv.5.i = sext i8 %14 to i32
store i32 %conv.5.i, i32* @c, align 4
%inc.5.i = add nsw i32 %8, 6
store i32 %inc.5.i, i32* @b, align 4
%arrayidx.sum7 = add i32 %add.i, %inc.5.i
%arrayidx.6.i = getelementptr inbounds i8* %3, i32 %arrayidx.sum7
%15 = load i8* %arrayidx.6.i, align 1
%conv.6.i = sext i8 %15 to i32
store i32 %conv.6.i, i32* @c, align 4
%inc.6.i = add nsw i32 %8, 7
store i32 %inc.6.i, i32* @b, align 4
%arrayidx.sum8 = add i32 %add.i, %inc.6.i
%arrayidx.7.i = getelementptr inbounds i8* %3, i32 %arrayidx.sum8
%16 = load i8* %arrayidx.7.i, align 1
%conv.7.i = sext i8 %16 to i32
store i32 %conv.7.i, i32* @c, align 4
%inc.7.i = add nsw i32 %8, 8
store i32 %inc.7.i, i32* @b, align 4
%tobool3.7.i = icmp sgt i32 %inc.7.i, -8
br i1 %tobool3.7.i, label %for.inc5.loopexit.ur-lcssa.i, label %for.body4.i
for.inc5.loopexit.ur-lcssa.i:
%17 = add i32 %.pr.i, 8
%18 = add i32 %17, %7
%19 = icmp eq i32 %18, 0
br i1 %19, label %for.inc5.i, label %for.body4.ur.i.preheader
for.body4.ur.i.preheader:
%.ph = phi i32 [ %18, %for.inc5.loopexit.ur-lcssa.i ], [ %.pr.i, %for.body4.preheader.i ]
br label %for.body4.ur.i
for.body4.ur.i:
%20 = phi i32 [ %inc.ur.i, %for.body4.ur.i ], [ %.ph, %for.body4.ur.i.preheader ]
%arrayidx.sum = add i32 %add.i, %20
%arrayidx.ur.i = getelementptr inbounds i8* %3, i32 %arrayidx.sum
%21 = load i8* %arrayidx.ur.i, align 1
%conv.ur.i = sext i8 %21 to i32
store i32 %conv.ur.i, i32* @c, align 4
%inc.ur.i = add nsw i32 %20, 1
store i32 %inc.ur.i, i32* @b, align 4
%tobool3.ur.i = icmp eq i32 %inc.ur.i, 0
br i1 %tobool3.ur.i, label %for.inc5.i.loopexit, label %for.body4.ur.i
for.inc5.i.loopexit:
br label %for.inc5.i
for.inc5.i:
%inc6.i = add nsw i32 %storemerge.i, 1
br label %for.cond2thread-pre-split.i
}
|
