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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - rL373738 hits assertion in lib/Target/ARM/ARMFrameLowering.cpp:468"
href="https://bugs.llvm.org/show_bug.cgi?id=44231">44231</a>
</td>
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<tr>
<th>Summary</th>
<td>rL373738 hits assertion in lib/Target/ARM/ARMFrameLowering.cpp:468
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Backend: ARM
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>alina.sbirlea@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, peter.smith@linaro.org, Ties.Stuij@arm.com
</td>
</tr></table>
<p>
<div>
<pre>assert.h assertion failed at llvm/lib/Target/ARM/ARMFrameLowering.cpp:468 in
virtual void llvm::ARMFrameLowering::emitPrologue(llvm::MachineFunction &,
llvm::MachineBasicBlock &) const: getMaxFPOffset(MF.getFunction(), *AFI) <=
FPOffset && "Max FP estimation is wrong"
To reproduce:
../bin/llc -O3 --mtriple=arm-apple-ios --mcpu=cortex-a9 --mattr=+neon test.ll
On:
target datalayout =
"e-m:o-p:32:32-Fi8-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
target triple = "arm-apple-ios"
%buffer_t = type { i64, i32 }
%closure_t = type { i32 }
declare float @llvm.floor.f32(float)
declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg)
declare void @llvm.trap()
define void @func(%buffer_t* noalias %input.buffer, float %scale_factor)
local_unnamed_addr {
entry:
%t0 = alloca %closure_t, align 4
%dimensions.i = getelementptr inbounds %buffer_t, %buffer_t* %input.buffer,
i32 0, i32 1
%t1 = icmp slt i32 undef, 32
%y.i98 = call float @llvm.floor.f32(float undef)
%b20 = fptosi float %y.i98 to i32
%t2 = fdiv reassoc nnan ninf nsz contract afn float 0.000000e+00,
%scale_factor
%t3 = fadd reassoc nnan ninf nsz contract afn float %t2, -5.000000e-01
%y.i99 = call float @llvm.floor.f32(float %t3)
%b23 = fptosi float %y.i99 to i32
%a17 = select i1 false, i32 %b20, i32 undef
%t4 = select i1 false, i32 %a17, i32 undef
%a22 = add nsw i32 %b23, 2
%t5 = select i1 false, i32 %a22, i32 undef
%a21 = add nsw i32 %t5, -1
%a20 = select i1 undef, i32 %b23, i32 %a21
%t6 = select i1 false, i32 %a20, i32 undef
%input.min.0.required = select i1 %t1, i32 %t4, i32 %t6
%t7 = bitcast %buffer_t* %input.buffer to i8*
call void @llvm.memset.p0i8.i64(i8* nonnull align 8 dereferenceable(16) %t7,
i8 0, i64 16, i1 false)
store i32 2, i32* %dimensions.i, align 4
%.sroa.0.0..sroa_cast = bitcast i8* undef to i32*
store i32 %input.min.0.required, i32* %.sroa.0.0..sroa_cast, align 4
call void @llvm.trap()
unreachable
}</pre>
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