Torture Test is failing after removing the Floating Point Unit

[ashu-bitspilani]

Background Work

• Yes, I searched the mailing list
• Yes, I searched prior issues
• Yes, I searched the documentation

Chipyard Version and Hash

Release: 1.5.0
Hash: a6a6a6

OS Setup

Ex: Output of uname -a + lsb_release -a + printenv + conda list

Other Setup

Ex: Prior steps taken / Documentation Followed / etc...

Current Behavior

I have removed the FPU from the RocketCore.
This is the configuration I have used to remove it.

class WithNBigCores(
  n: Int,
  overrideIdOffset: Option[Int] = None,
  crossing: RocketCrossingParams = RocketCrossingParams()
) extends Config((site, here, up) => {
  case TilesLocated(InSubsystem) => {
    val prev = up(TilesLocated(InSubsystem), site)
    val idOffset = overrideIdOffset.getOrElse(prev.size)
    val big = RocketTileParams(
    core   = RocketCoreParams(fpu = None),

It has been completely removed as I have checked the RTL.

Expected Behavior

But the torture test running is fine with FPU Configuration.

But it is failing with without FPU Configuration

Can someone help how to run torture after removing the FPU

Other Information

No response

[jerryz123]

You likely have to configure torture to not omit FP instructions. You can figure out how to do that through the documentation and source code of torture.

[ashu-bitspilani]

@jerryz123
I have entirely removed the FP instruction from torture and also checked that there is no freg register and FP-related instruction generated in the test.S file. But still, my torture test is getting failed