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-rw-r--r--src/cpu/o3/decode_impl.hh5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/cpu/o3/decode_impl.hh b/src/cpu/o3/decode_impl.hh
index c78e7f211..c66f488a5 100644
--- a/src/cpu/o3/decode_impl.hh
+++ b/src/cpu/o3/decode_impl.hh
@@ -68,6 +68,11 @@ DefaultDecode<Impl>::DefaultDecode(O3CPU *_cpu, DerivO3CPUParams *params)
decodeWidth(params->decodeWidth),
numThreads(params->numThreads)
{
+ if (decodeWidth > Impl::MaxWidth)
+ fatal("decodeWidth (%d) is larger than compiled limit (%d),\n"
+ "\tincrease MaxWidth in src/cpu/o3/impl.hh\n",
+ decodeWidth, static_cast<int>(Impl::MaxWidth));
+
// @todo: Make into a parameter
skidBufferMax = (fetchToDecodeDelay + 1) * params->fetchWidth;
}