mirror of
https://github.com/RPCS3/llvm.git
synced 2025-04-04 14:22:26 +00:00
47eb6567e2
The problem occurred when trying to reload this instruction: MOV32mr %reg2326, 8, %reg2297, 4, %reg2295 The value of reg2326 was available in EBX, so it was reused from there, instead of reloading it into EDX. The value of reg2297 was available in EDX, so it was reused from there, instead of reloading it into EDI. The value of reg2295 was not available, so we tried reloading it into EBX, its assigned register. However, we checked and saw that we already reloaded something into EBX, so we chose what reg2326 was assigned to (EDX) and reloaded into that register instead. Unfortunately EDX had already been used by reg2297, so reloading into EDX clobbered the value used by the reg2326 operand, breaking the program. The fix for this is to check that the newly picked register is ok. In this case we now find that EDX is already used and try using EDI, which succeeds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17006 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for the Low Level Virtual Machine, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the HTML documentation provided in docs/index.html for further assistance with LLVM.