[all-commits] [llvm/llvm-project] 729bf9: AMDGPU: Enable fixed function ABI by default

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 729bf9b26b657df8ddad2e5a63377e6afb349a18
      https://github.com/llvm/llvm-project/commit/729bf9b26b657df8ddad2e5a63377e6afb349a18
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2021-12-04 (Sat, 04 Dec 2021)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUCallLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
    M llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/ashr.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/combine-fma-add-fma-mul.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-atomicrmw.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-constrained-fp.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-function-args.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-inline-asm.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-sibling-call.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/lds-global-non-entry-func.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.workitem.id.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/lshr.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/non-entry-alloca.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/saddsat.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/shl.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/ssubsat.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/uaddsat.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/usubsat.ll
    M llvm/test/CodeGen/AMDGPU/abi-attribute-hints-undefined-behavior.ll
    M llvm/test/CodeGen/AMDGPU/addrspacecast.ll
    M llvm/test/CodeGen/AMDGPU/amdpal-callable.ll
    M llvm/test/CodeGen/AMDGPU/branch-relax-spill.ll
    M llvm/test/CodeGen/AMDGPU/call-argument-types.ll
    M llvm/test/CodeGen/AMDGPU/call-constexpr.ll
    M llvm/test/CodeGen/AMDGPU/call-preserved-registers.ll
    M llvm/test/CodeGen/AMDGPU/call-waitcnt.ll
    M llvm/test/CodeGen/AMDGPU/callee-special-input-sgprs-fixed-abi.ll
    M llvm/test/CodeGen/AMDGPU/callee-special-input-sgprs.ll
    M llvm/test/CodeGen/AMDGPU/callee-special-input-vgprs-packed.ll
    M llvm/test/CodeGen/AMDGPU/callee-special-input-vgprs.ll
    M llvm/test/CodeGen/AMDGPU/cc-update.ll
    M llvm/test/CodeGen/AMDGPU/cross-block-use-is-not-abi-copy.ll
    M llvm/test/CodeGen/AMDGPU/ds_read2.ll
    M llvm/test/CodeGen/AMDGPU/fdiv-nofpexcept.ll
    M llvm/test/CodeGen/AMDGPU/flat-scratch-init.ll
    M llvm/test/CodeGen/AMDGPU/frame-setup-without-sgpr-to-vgpr-spills.ll
    M llvm/test/CodeGen/AMDGPU/function-args.ll
    M llvm/test/CodeGen/AMDGPU/gfx-callable-argument-types.ll
    M llvm/test/CodeGen/AMDGPU/indirect-call-known-callees.ll
    M llvm/test/CodeGen/AMDGPU/ipra.ll
    M llvm/test/CodeGen/AMDGPU/lds-global-non-entry-func.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.implicitarg.ptr.ll
    M llvm/test/CodeGen/AMDGPU/memory_clause.ll
    M llvm/test/CodeGen/AMDGPU/mul24-pass-ordering.ll
    M llvm/test/CodeGen/AMDGPU/no-source-locations-in-prologue.ll
    M llvm/test/CodeGen/AMDGPU/non-entry-alloca.ll
    M llvm/test/CodeGen/AMDGPU/promote-constOffset-to-imm.ll
    M llvm/test/CodeGen/AMDGPU/ptr-arg-dbg-value.ll
    M llvm/test/CodeGen/AMDGPU/sibling-call.ll
    M llvm/test/CodeGen/AMDGPU/spill-csr-frame-ptr-reg-copy.ll
    M llvm/test/CodeGen/AMDGPU/ssubsat.ll
    M llvm/test/CodeGen/AMDGPU/stack-pointer-offset-relative-frameindex.ll
    M llvm/test/CodeGen/AMDGPU/stack-realign.ll
    M llvm/test/CodeGen/AMDGPU/token-factor-inline-limit-test.ll
    M llvm/test/CodeGen/AMDGPU/uaddsat.ll
    M llvm/test/CodeGen/AMDGPU/unstructured-cfg-def-use-issue.ll
    M llvm/test/CodeGen/AMDGPU/usubsat.ll
    M llvm/test/CodeGen/AMDGPU/vgpr-tuple-allocation.ll
    M llvm/test/CodeGen/MIR/AMDGPU/machine-function-info-no-ir.mir
    M llvm/test/CodeGen/MIR/AMDGPU/machine-function-info.ll

  Log Message:
  -----------
  AMDGPU: Enable fixed function ABI by default

Code using indirect calls is broken without this, and there isn't
really much value in supporting the old attempt to vary the argument
placement based on uses. This resulted in more argument shuffling code
anyway.

Also have the option stop implying all inputs need to be passed. This
will no rely on the amdgpu-no-* attributes to avoid passing
unnecessary values.