forked from OSchip/llvm-project
61 lines
2.5 KiB
LLVM
61 lines
2.5 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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; Derived from test-suite/SingleSource/UnitTests/Vector/SSE/sse.stepfft.c
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; The values %mul.i44 is simplified to constant 4 by ScalarEvolution, but
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; SCEVAffinator used to check whether the sdiv's argument was constant.
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: nounwind uwtable
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define void @cfft2(i32 %n, double* %A) local_unnamed_addr #0 {
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entry:
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br i1 true, label %for.body.lr.ph, label %for.end
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for.body.lr.ph: ; preds = %entry
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br label %for.body
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for.body: ; preds = %for.inc, %for.body.lr.ph
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%mj.017 = phi i32 [ 1, %for.body.lr.ph ], [ undef, %for.inc ]
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br i1 true, label %if.else, label %if.then
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if.then: ; preds = %for.body
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br label %for.inc
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if.else: ; preds = %for.body
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%mul.i44 = shl i32 %mj.017, 2
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%div.i45 = sdiv i32 %n, %mul.i44
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br i1 true, label %for.body.i58.lr.ph, label %for.inc
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for.body.i58.lr.ph: ; preds = %if.else
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br i1 false, label %for.body.i58.us, label %for.body.i58.preheader
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for.body.i58.preheader: ; preds = %for.body.i58.lr.ph
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br label %for.body.i58
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for.body.i58.us: ; preds = %for.body.i58.us, %for.body.i58.lr.ph
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br i1 false, label %for.inc, label %for.body.i58.us
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for.body.i58: ; preds = %for.body.i58, %for.body.i58.preheader
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store double 0.0, double* %A
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%exitcond42 = icmp eq i32 0, %div.i45
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br i1 %exitcond42, label %for.inc, label %for.body.i58
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for.inc: ; preds = %for.body.i58, %for.body.i58.us, %if.else, %if.then
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br i1 undef, label %for.end, label %for.body
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for.end: ; preds = %for.inc, %entry
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ret void
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}
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attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.ident = !{!0}
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!0 = !{!"clang version 3.9.0 (trunk 273249) (llvm/trunk 273255)"}
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; CHECK-LABEL: Stmt_for_body_i58
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: [n] -> { Stmt_for_body_i58[0] : -3 <= n <= 3 };
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