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<body><span class="vcard"><a class="email" href="mailto:mcrosier@codeaurora.org" title="Chad Rosier <mcrosier@codeaurora.org>"> <span class="fn">Chad Rosier</span></a>
</span> changed
<a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - Assertion failied in llvm::SUnit* llvm::SchedBoundary::pickOnlyChoice(): Assertion `i <= (HazardRec->getMaxLookAhead() + MaxObservedStall) && "permanent hazard"'"
href="http://llvm.org/bugs/show_bug.cgi?id=20057">bug 20057</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>RESOLVED
</td>
<td>REOPENED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>FIXED
</td>
<td>---
</td>
</tr></table>
<p>
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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - Assertion failied in llvm::SUnit* llvm::SchedBoundary::pickOnlyChoice(): Assertion `i <= (HazardRec->getMaxLookAhead() + MaxObservedStall) && "permanent hazard"'"
href="http://llvm.org/bugs/show_bug.cgi?id=20057#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED --- - Assertion failied in llvm::SUnit* llvm::SchedBoundary::pickOnlyChoice(): Assertion `i <= (HazardRec->getMaxLookAhead() + MaxObservedStall) && "permanent hazard"'"
href="http://llvm.org/bugs/show_bug.cgi?id=20057">bug 20057</a>
from <span class="vcard"><a class="email" href="mailto:mcrosier@codeaurora.org" title="Chad Rosier <mcrosier@codeaurora.org>"> <span class="fn">Chad Rosier</span></a>
</span></b>
<pre>Hi Andy,
The latter two test cases pass, but unfortunately the first does not.
This one:
; RUN: llc < %s -O3 -march=aarch64 -mcpu=cortex-a53 | FileCheck %s
define void @foo() {
entry:
br label %loop
loop:
%0 = call { <2 x i64>, <2 x i64>, <2 x i64>, <2 x i64> }
@llvm.aarch64.neon.ld4.v2i64.p0i8(i8* null)
%ptr = bitcast i8* undef to <2 x i64>*
store <2 x i64> zeroinitializer, <2 x i64>* %ptr, align 4
%ptr1 = bitcast i8* undef to <2 x i64>*
store <2 x i64> zeroinitializer, <2 x i64>* %ptr1, align 4
%ptr2 = bitcast i8* undef to <2 x i64>*
store <2 x i64> zeroinitializer, <2 x i64>* %ptr2, align 4
%ptr3 = bitcast i8* undef to <2 x i64>*
store <2 x i64> zeroinitializer, <2 x i64>* %ptr3, align 4
%ptr4 = bitcast i8* undef to <2 x i64>*
store <2 x i64> zeroinitializer, <2 x i64>* %ptr4, align 4
br label %loop
}
declare { <2 x i64>, <2 x i64>, <2 x i64>, <2 x i64> }
@llvm.aarch64.neon.ld4.v2i64.p0i8(i8*)</pre>
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