[PATCH] D156404: [RISCV] Use x0 in vsetvli when avl is equal to vlmax.

[Jianjian Guan via Phabricator via llvm-commits]

jacquesguan marked 2 inline comments as done.
jacquesguan added inline comments.


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Comment at: llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp:557
+    if (Subtarget->getRealMinVLen() == Subtarget->getRealMaxVLen()) {
+      const unsigned VLEN = Subtarget->getRealMinVLen();
+      if (VLEN / RISCVVType::getSEWLMULRatio(SEW, VLMul) == C->getZExtValue())
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craig.topper wrote:
> ```
> const unsigned VLEN = Subtarget->getRealMinVLen();
> if (VLEN == Subtarget->getRealMaxVLen()) {
> ```
Done.


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Comment at: llvm/test/CodeGen/RISCV/rvv/vsetvli-intrinsics.ll:5
 ; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 -mattr=+v \
-; RUN:   -verify-machineinstrs | FileCheck %s
+; RUN:   -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK,VLENUNKONWN
+; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 -mattr=+v \
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luke wrote:
> Small typo
Done.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D156404/new/

https://reviews.llvm.org/D156404