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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - llc assertion with attribute -sse2 and arch x86-64"
href="http://llvm.org/bugs/show_bug.cgi?id=17598">17598</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>llc assertion with attribute -sse2 and arch x86-64
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>gm4cheng@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>I have an ir at the end. Run it with:
llc -mcpu=i386 -march=x86-64 -mattr=-sse2
and get assertion below. Changing cpu does not help.
I am using llc from the latest svn repository.
-----error message------
llc: X86FloatingPoint.cpp:332: unsigned int getFPReg(const llvm::MachineOperand
&): Assertion `Reg >= X86::FP0 && Reg <= X86::FP6 && "Expected FP register!"'
failed.
0 llc 0x0000000000f75942 llvm::sys::PrintStackTrace(_IO_FILE*) +
34
1 llc 0x0000000000f75ed8
2 libpthread.so.0 0x00007f23f8edef60
3 libc.so.6 0x00007f23f7fe9165 gsignal + 53
4 libc.so.6 0x00007f23f7febf70 abort + 384
5 libc.so.6 0x00007f23f7fe22b1 __assert_fail + 241
6 llc 0x00000000008cf260
7 llc 0x00000000008cbb3e
8 llc 0x00000000008cb443
9 llc 0x0000000000bbfaa7
llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 55
10 llc 0x0000000000f149a6
llvm::FPPassManager::runOnFunction(llvm::Function&) + 310
11 llc 0x0000000000f14c1b
llvm::FPPassManager::runOnModule(llvm::Module&) + 59
12 llc 0x0000000000f14eee
llvm::MPPassManager::runOnModule(llvm::Module&) + 334
13 llc 0x0000000000f15515 llvm::PassManagerImpl::run(llvm::Module&)
+ 293
14 llc 0x0000000000f1569a llvm::PassManager::run(llvm::Module&) +
10
15 llc 0x00000000005193e8 main + 6232
16 libc.so.6 0x00007f23f7fd5c4d __libc_start_main + 253
17 llc 0x0000000000517ac9
Stack dump:
0. Program arguments: /local/pcheng/tmp/llvm_build/bin/llc -mcpu=i386
-march=x86-64 -mattr=-sse2 test.ll -o test.bc
1. Running pass 'Function Pass Manager' on module 'test.ll'.
2. Running pass 'X86 FP Stackifier' on function '@f3'
Abort
-------- ir ---------
; ModuleID = 'module_name'
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32,
i1) nounwind
define void @f3(double %a, [2 x double]*) {
entry:
%r1 = alloca [2 x double]
br label %1
; <label>:1 ; preds = %entry
%2 = getelementptr [2 x double]* %r1, i64 0, i64 0
store double %a, double* %2
br label %3
; <label>:3 ; preds = %1
%4 = getelementptr [2 x double]* %r1, i64 0, i64 1
store double %a, double* %4
br label %5
; <label>:5 ; preds = %3
%6 = bitcast [2 x double]* %0 to i8*
%7 = bitcast [2 x double]* %r1 to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %6, i8* %7, i64 16, i32 4, i1 false)
ret void
}</pre>
</div>
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