[clang] [llvm] [RISCV] QCI Interrupt Support (PR #129957)

[Craig Topper via cfe-commits]

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@@ -382,6 +410,10 @@ void 
RISCVFrameLowering::determineFrameLayout(MachineFunction &MF) const {
   // Get the number of bytes to allocate from the FrameInfo.
   uint64_t FrameSize = MFI.getStackSize();
 
+  // QCI Interrupts use at least 96 bytes of stack space
+  if (RVFI->useQCIInterrupt(MF))
+    FrameSize = std::max<uint64_t>(FrameSize, QCIInterruptPushAmount);
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topperc wrote:

why is the `<uint64_t>` needed? I think both operands have the same type so it 
should be inferred

https://github.com/llvm/llvm-project/pull/129957
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