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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - r304055 introduces verifier errors from rescheduling register tuple copies"
href="https://bugs.llvm.org/show_bug.cgi?id=33606">33606</a>
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<th>Summary</th>
<td>r304055 introduces verifier errors from rescheduling register tuple copies
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Common Code Generator Code
</td>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>Matthew.Arsenault@amd.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<pre>Created <span class=""><a href="attachment.cgi?id=18719" name="attach_18719" title="Testcase">attachment 18719</a> <a href="attachment.cgi?id=18719&action=edit" title="Testcase">[details]</a></span>
Testcase
# After Post RA top-down list latency scheduler
# Machine code for function sched_breaks_tuple_copy: IsSSA, NoPHIs,
TracksLiveness, NoVRegs
Function Live Ins: %SGPR7, %SGPR0_SGPR1_SGPR2_SGPR3
BB#0:
Live Ins: %SGPR7 %SGPR0_SGPR1_SGPR2_SGPR3
%SGPR10<def> = S_MOV_B32 5
%SGPR9<def> = S_MOV_B32 4
%SGPR8<def> = S_MOV_B32 3
%SGPR33<def> = S_MOV_B32 %SGPR7<kill>
%VGPR0<def> = V_MOV_B32_e32 %SGPR8<kill>, %EXEC<imp-use>,
%VGPR0_VGPR1_VGPR2_VGPR3<imp-def>, %SGPR8_SGPR9_SGPR10_SGPR11<imp-use>
BUNDLE %SGPR6_SGPR7<imp-def>, %SGPR6<imp-def>, %SGPR7<imp-def>,
%SCC<imp-def>
* %SGPR6_SGPR7<def> = S_GETPC_B64
* %SGPR6<def> = S_ADD_U32 %SGPR6<internal>, 0, %SCC<imp-def>
* %SGPR7<def> = S_ADDC_U32 %SGPR7<internal>, 0, %SCC<imp-def>,
%SCC<imp-use,internal>
%SGPR4<def> = S_MOV_B32 %SGPR33
%VGPR1<def> = V_MOV_B32_e32 %SGPR9<kill>, %EXEC<imp-use>,
%SGPR8_SGPR9_SGPR10_SGPR11<imp-use>
%VGPR2<def> = V_MOV_B32_e32 %SGPR10<kill>, %EXEC<imp-use>,
%SGPR8_SGPR9_SGPR10_SGPR11<imp-use>
%VGPR3<def> = V_MOV_B32_e32 %SGPR11<kill>, %EXEC<imp-use>,
%SGPR8_SGPR9_SGPR10_SGPR11<imp-use>, %EXEC<imp-use>
%SGPR32<def> = S_MOV_B32 %SGPR33<kill>
S_NOP 0, %SGPR6_SGPR7<imp-use,kill>, %SGPR0_SGPR1_SGPR2_SGPR3<imp-use>,
%SGPR4<imp-use>, %VGPR0_VGPR1_VGPR2_VGPR3<imp-use,kill>
S_ENDPGM
# End machine code for function sched_breaks_tuple_copy.
*** Bad machine code: Using an undefined physical register ***
- function: sched_breaks_tuple_copy
- basic block: BB#0 (0x7fa1be806028)
- instruction: %VGPR3<def> = V_MOV_B32_e32
- operand 3: %SGPR8_SGPR9_SGPR10_SGPR11<imp-use>
LLVM ERROR: Found 1 machine code errors.</pre>
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