forked from OSchip/llvm-project
116 lines
3.9 KiB
LLVM
116 lines
3.9 KiB
LLVM
; RUN: opt %loadPolly -polly-delicm -analyze < %s | FileCheck %s -match-full-lines
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;
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; llvm.org/PR34485
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; This produces a non-injective PHIRead -> PHIWrite map due to an invalid
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; paramter assumption. It does not map anything because the result does pass
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; the non-conflicting test. It would be a better test if it did to test whether
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; correct code is generated.
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;
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; unsigned a;
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; long b, d;
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; short c;
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; int e, f;
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; void fn1() {
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; for (;;) {
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; for (; f;)
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; for (;;)
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; ;
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; a -= 0 < b;
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; for (; f <= 5; f++) {
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; short *g = &c;
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; *g = a++ ? e *= 4 : c;
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; g = &f;
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; d = *g;
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; }
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; }
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; }
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;
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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@f = common local_unnamed_addr global i32 0, align 4
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@b = common local_unnamed_addr global i32 0, align 4
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@a = common local_unnamed_addr global i32 0, align 4
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@c = common local_unnamed_addr global i16 0, align 2
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@e = common local_unnamed_addr global i32 0, align 4
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@d = common local_unnamed_addr global i32 0, align 4
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define void @fn1() local_unnamed_addr {
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entry:
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br label %entry.split
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entry.split: ; preds = %entry
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%.pr = load i32, i32* @f, align 4
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%tobool19 = icmp eq i32 %.pr, 0
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br i1 %tobool19, label %for.end.lr.ph, label %for.body
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for.end.lr.ph: ; preds = %entry.split
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%0 = load i32, i32* @b, align 4
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%cmp = icmp sgt i32 %0, 0
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%conv = zext i1 %cmp to i32
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%a.promoted20 = load i32, i32* @a, align 4
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br label %for.end
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for.cond.for.body_crit_edge: ; preds = %for.end, %for.end12
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%inc.lcssa2125 = phi i32 [ %inc, %for.end12 ], [ %sub, %for.end ]
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store i32 %inc.lcssa2125, i32* @a, align 4
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br label %for.body
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for.body: ; preds = %for.cond.for.body_crit_edge, %entry.split
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br label %for.cond2
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for.cond2: ; preds = %for.cond2, %for.body
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br label %for.cond2
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for.end: ; preds = %for.end.lr.ph, %for.end12
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%inc.lcssa22 = phi i32 [ %a.promoted20, %for.end.lr.ph ], [ %inc, %for.end12 ]
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%sub = sub i32 %inc.lcssa22, %conv
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%.pr15 = load i32, i32* @f, align 4
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%cmp416 = icmp slt i32 %.pr15, 6
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br i1 %cmp416, label %for.body6.lr.ph, label %for.cond.for.body_crit_edge
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for.body6.lr.ph: ; preds = %for.end
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%c.promoted = load i16, i16* @c, align 2
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br label %for.body6
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for.body6: ; preds = %for.body6.lr.ph, %cond.end
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%conv918 = phi i16 [ %c.promoted, %for.body6.lr.ph ], [ %conv9, %cond.end ]
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%inc17 = phi i32 [ %sub, %for.body6.lr.ph ], [ %inc, %cond.end ]
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%1 = phi i32 [ %.pr15, %for.body6.lr.ph ], [ %inc11, %cond.end ]
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%inc = add i32 %inc17, 1
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%tobool7 = icmp eq i32 %inc17, 0
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br i1 %tobool7, label %cond.false, label %cond.true
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cond.true: ; preds = %for.body6
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%2 = load i32, i32* @e, align 4
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%mul = shl nsw i32 %2, 2
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store i32 %mul, i32* @e, align 4
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br label %cond.end
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cond.false: ; preds = %for.body6
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%conv8 = sext i16 %conv918 to i32
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br label %cond.end
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cond.end: ; preds = %cond.false, %cond.true
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%cond = phi i32 [ %mul, %cond.true ], [ %conv8, %cond.false ]
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%conv9 = trunc i32 %cond to i16
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%3 = load i16, i16* bitcast (i32* @f to i16*), align 4
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%inc11 = add nsw i32 %1, 1
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store i32 %inc11, i32* @f, align 4
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%cmp4 = icmp slt i32 %1, 5
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br i1 %cmp4, label %for.body6, label %for.end12
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for.end12: ; preds = %cond.end
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%conv10 = sext i16 %3 to i32
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store i16 %conv9, i16* @c, align 2
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store i32 %conv10, i32* @d, align 4
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%tobool = icmp eq i32 %inc11, 0
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br i1 %tobool, label %for.end, label %for.cond.for.body_crit_edge
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}
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; CHECK: Statistics {
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; CHECK: Compatible overwrites: 1
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; CHECK: }
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; CHECK: No modification has been made
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