inorder: write-hints bug fix
make sure to only read 1 src reg. for write-hint and any other similar 'store' instruction. Reading the source reg when its not necessary can cause the simulator to read from uninitialized values
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1 changed files with 3 additions and 1 deletions
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@ -116,7 +116,9 @@ bool createBackEndSchedule(DynInstPtr &inst)
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if ( inst->isLoad() ) {
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M->needs(DCache, CacheUnit::InitiateReadData);
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} else if ( inst->isStore() ) {
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if ( inst->numSrcRegs() >= 2 ) {
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M->needs(RegManager, UseDefUnit::ReadSrcReg, 1);
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}
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M->needs(AGEN, AGENUnit::GenerateAddr);
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M->needs(DCache, CacheUnit::InitiateWriteData);
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}
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