| commit | 4e4498e03db13890aedf4a241bb3d2a6c5826adf | |
| author | Evan Cheng <evan.cheng@apple.com> | |
| Wed, 5 Aug 2009 07:05:41 +0000 (5 07:05 +0000) | ||
| committer | Evan Cheng <evan.cheng@apple.com> | |
| Wed, 5 Aug 2009 07:05:41 +0000 (5 07:05 +0000) | ||
| tree | f54dacb4dcd4b1a76d5ce89e91b12d6988e60d05 | treesnapshot (tar.gz zip) |
| parent | 661404bba65dfd26fa385f41fe8d46c68702ef6d | commitdiff |
Another nasty coalescer bug (is there another kind):
After coalescing reg1027's def and kill are both at the same point:
%reg1027,0.000000e+00 = [56,814:0) 0@70-(814)
bb5:
60 %reg1027<def> = t2MOVr %reg1027, 14, %reg0, %reg0
68 %reg1027<def> = t2LDRi12 %reg1027<kill>, 8, 14, %reg0
76 t2CMPzri %reg1038<kill,undef>, 0, 14, %reg0, %CPSR<imp-def>
84 %reg1027<def> = t2MOVr %reg1027, 14, %reg0, %reg0
96 t2Bcc mbb<bb5,0x2030910>, 1, %CPSR<kill>
Do not remove the kill marker on t2LDRi12.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78178 91177308-0d34-0410-b5e6-96231b3b80d8
After coalescing reg1027's def and kill are both at the same point:
%reg1027,0.000000e+00 = [56,814:0) 0@70-(814)
bb5:
60 %reg1027<def> = t2MOVr %reg1027, 14, %reg0, %reg0
68 %reg1027<def> = t2LDRi12 %reg1027<kill>, 8, 14, %reg0
76 t2CMPzri %reg1038<kill,undef>, 0, 14, %reg0, %CPSR<imp-def>
84 %reg1027<def> = t2MOVr %reg1027, 14, %reg0, %reg0
96 t2Bcc mbb<bb5,0x2030910>, 1, %CPSR<kill>
Do not remove the kill marker on t2LDRi12.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78178 91177308-0d34-0410-b5e6-96231b3b80d8
| lib/CodeGen/SimpleRegisterCoalescing.cpp | diffblobblamehistory | |
| test/CodeGen/Thumb2/2009-08-04-CoalescerBug.ll | [new file with mode: 0644] | blob |