d1e33e7061
Scops that only read seem generally uninteresting and scops that only write are most likely initializations where there is also little to optimize. To not waste compile time we bail early. Differential Revision: http://reviews.llvm.org/D7735 llvm-svn: 229820
30 lines
1.4 KiB
LLVM
30 lines
1.4 KiB
LLVM
; RUN: opt %loadPolly -polly-detect-unprofitable -polly-no-early-exit -basicaa -polly-codegen-isl -verify-loop-info < %s -S | FileCheck %s
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target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-a0:0-n32"
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target triple = "hexagon-unknown-linux-gnu"
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; This test case used to fail, because we did not add the newly generated basic
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; block %polly.start as a basic block to the surrounding loop.
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define void @foo() nounwind {
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entry:
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br i1 undef, label %while.cond14.preheader, label %for.body7.single_entry.single_entry
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while.cond14.preheader: ; preds = %for.inc02, %for.body7.single_entry.single_entry, %entry
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ret void
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for.body7.single_entry.single_entry: ; preds = %for.inc02, %entry
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br i1 undef, label %while.cond14.preheader, label %while.body
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while.body: ; preds = %while.body, %for.body7.single_entry.single_entry
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%indvar35 = phi i32 [ %0, %while.body ], [ 0, %for.body7.single_entry.single_entry ]
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%0 = add i32 %indvar35, 1
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%exitcond2 = icmp eq i32 %0, 0
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br i1 %exitcond2, label %for.inc02, label %while.body
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for.inc02: ; preds = %while.body
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br i1 undef, label %while.cond14.preheader, label %for.body7.single_entry.single_entry
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}
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; CHECK: polly.split_new_and_old
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; CHECK: br i1 true, label %polly.start, label %while.body
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