[all-commits] [llvm/llvm-project] 698584: [IR] Remove unbounded as possible value for vscale...

[Cullen Rhodes via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 698584f89b8f8bd7f6c2d2cd61efb5548857da2a
      https://github.com/llvm/llvm-project/commit/698584f89b8f8bd7f6c2d2cd61efb5548857da2a
  Author: Cullen Rhodes <cullen.rhodes at arm.com>
  Date:   2021-12-07 (Tue, 07 Dec 2021)

  Changed paths:
    M clang/include/clang/Basic/DiagnosticDriverKinds.td
    M clang/include/clang/Driver/Options.td
    M clang/lib/Basic/Targets/AArch64.cpp
    M clang/lib/Frontend/CompilerInvocation.cpp
    M clang/test/CodeGen/arm-sve-vector-bits-vscale-range.c
    A clang/test/Frontend/aarch64-vscale-min.c
    M llvm/docs/LangRef.rst
    M llvm/include/llvm/IR/Attributes.h
    M llvm/lib/IR/Attributes.cpp
    M llvm/lib/IR/Verifier.cpp
    M llvm/test/Analysis/CostModel/AArch64/sve-gather.ll
    M llvm/test/Analysis/CostModel/AArch64/sve-scatter.ll
    M llvm/test/Bitcode/attributes.ll
    M llvm/test/Transforms/InstCombine/icmp-vscale.ll
    M llvm/test/Transforms/InstCombine/vscale_sext_and_zext.ll
    M llvm/test/Transforms/InstCombine/vscale_trunc.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/first-order-recurrence.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/scalable-strict-fadd.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/scalable-vectorization.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/scalable-vf-hint.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-cond-inv-loads.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-gather-scatter.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-inv-store.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-large-strides.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-strict-fadd-cost.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-widen-phi.ll
    M llvm/test/Verifier/vscale_range.ll

  Log Message:
  -----------
  [IR] Remove unbounded as possible value for vscale_range minimum

The default for min is changed to 1. The behaviour of -mvscale-{min,max}
in Clang is also changed such that 16 is the max vscale when targeting
SVE and no max is specified.

Reviewed By: sdesmalen, paulwalker-arm

Differential Revision: https://reviews.llvm.org/D113294