[all-commits] [llvm/llvm-project] 57b485: [AMDGPU] Use register pair for PC spill (#183146)

Scott Linder via All-commits all-commits at lists.llvm.org
Wed May 27 11:19:16 PDT 2026 

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 57b485f07d94e1780ed83275a01ef1c450dcdbd1
      https://github.com/llvm/llvm-project/commit/57b485f07d94e1780ed83275a01ef1c450dcdbd1
  Author: Scott Linder <scott.linder at amd.com>
  Date:   2026-05-27 (Wed, 27 May 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/assert-align.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/call-outgoing-stack-args.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/localizer.ll
    M llvm/test/CodeGen/AMDGPU/abi-attribute-hints-undefined-behavior.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn-call-whole-wave.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.1024bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.128bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.160bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.16bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.192bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.224bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.256bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.288bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.320bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.32bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.352bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.384bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.448bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.48bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.512bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.576bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.640bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.64bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.704bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.768bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.832bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.896bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.960bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.96bit.ll
    M llvm/test/CodeGen/AMDGPU/amdgcn.bitcast.ptr.ll
    M llvm/test/CodeGen/AMDGPU/amdgpu-simplify-libcall-pow-codegen.ll
    M llvm/test/CodeGen/AMDGPU/attributor-flatscratchinit-undefined-behavior2.ll
    M llvm/test/CodeGen/AMDGPU/bf16.ll
    M llvm/test/CodeGen/AMDGPU/branch-relax-spill.ll
    M llvm/test/CodeGen/AMDGPU/call-args-inreg-bfloat.ll
    M llvm/test/CodeGen/AMDGPU/call-args-inreg-no-sgpr-for-csrspill.ll
    M llvm/test/CodeGen/AMDGPU/call-args-inreg.ll
    M llvm/test/CodeGen/AMDGPU/call-argument-types.ll
    M llvm/test/CodeGen/AMDGPU/call-graph-register-usage.ll
    M llvm/test/CodeGen/AMDGPU/call-preserved-registers.ll
    M llvm/test/CodeGen/AMDGPU/call-skip.ll
    M llvm/test/CodeGen/AMDGPU/callee-frame-setup.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-entry.ll
    M llvm/test/CodeGen/AMDGPU/cc-inreg-sgpr0-3-mismatch.ll
    M llvm/test/CodeGen/AMDGPU/copysign-simplify-demanded-bits.ll
    M llvm/test/CodeGen/AMDGPU/cross-block-use-is-not-abi-copy.ll
    M llvm/test/CodeGen/AMDGPU/debug-frame.ll
    M llvm/test/CodeGen/AMDGPU/dwarf-multi-register-use-crash.ll
    M llvm/test/CodeGen/AMDGPU/dynamic-vgpr-reserve-stack-for-cwsr.ll
    M llvm/test/CodeGen/AMDGPU/eliminate-frame-index-select.ll
    M llvm/test/CodeGen/AMDGPU/fix-frame-reg-in-custom-csr-spills.ll
    M llvm/test/CodeGen/AMDGPU/frame-setup-without-sgpr-to-vgpr-spills.ll
    M llvm/test/CodeGen/AMDGPU/function-args-inreg.ll
    M llvm/test/CodeGen/AMDGPU/gfx-call-non-gfx-func.ll
    M llvm/test/CodeGen/AMDGPU/gfx-callable-argument-types.ll
    M llvm/test/CodeGen/AMDGPU/gfx-callable-preserved-registers.ll
    M llvm/test/CodeGen/AMDGPU/gfx-callable-return-types.ll
    M llvm/test/CodeGen/AMDGPU/global-alias.ll
    M llvm/test/CodeGen/AMDGPU/identical-subrange-spill-infloop.ll
    M llvm/test/CodeGen/AMDGPU/indirect-call.ll
    M llvm/test/CodeGen/AMDGPU/insert-delay-alu-bug.ll
    M llvm/test/CodeGen/AMDGPU/insert-waitcnts-crash.ll
    M llvm/test/CodeGen/AMDGPU/issue176578.ll
    M llvm/test/CodeGen/AMDGPU/llvm.amdgcn.mfma.scale.f32.16x16x128.f8f6f4.ll
    M llvm/test/CodeGen/AMDGPU/materialize-frame-index-sgpr.ll
    M llvm/test/CodeGen/AMDGPU/mul24-pass-ordering.ll
    M llvm/test/CodeGen/AMDGPU/need-fp-from-vgpr-spills.ll
    M llvm/test/CodeGen/AMDGPU/nested-calls.ll
    M llvm/test/CodeGen/AMDGPU/no-source-locations-in-prologue.ll
    M llvm/test/CodeGen/AMDGPU/nofpclass-call.ll
    M llvm/test/CodeGen/AMDGPU/preserve-wwm-copy-dst-reg.ll
    M llvm/test/CodeGen/AMDGPU/s-getpc-b64-remat.ll
    M llvm/test/CodeGen/AMDGPU/sgpr-spill-overlap-wwm-reserve.mir
    M llvm/test/CodeGen/AMDGPU/sgpr-spills-split-regalloc.ll
    M llvm/test/CodeGen/AMDGPU/shufflevector.v2i64.v8i64.ll
    M llvm/test/CodeGen/AMDGPU/si-lower-sgpr-spills-vgpr-lanes-usage.mir
    M llvm/test/CodeGen/AMDGPU/sibling-call.ll
    M llvm/test/CodeGen/AMDGPU/stack-realign.ll
    M llvm/test/CodeGen/AMDGPU/stacksave_stackrestore.ll
    M llvm/test/CodeGen/AMDGPU/strictfp_f16_abi_promote.ll
    M llvm/test/CodeGen/AMDGPU/swdev504645-global-fold.ll
    M llvm/test/CodeGen/AMDGPU/tail-call-inreg-arguments.waterfall.ll
    M llvm/test/CodeGen/AMDGPU/unfold-masked-merge-scalar-variablemask.ll
    M llvm/test/CodeGen/AMDGPU/unstructured-cfg-def-use-issue.ll
    M llvm/test/CodeGen/AMDGPU/vgpr-mark-last-scratch-load.ll
    M llvm/test/CodeGen/AMDGPU/vgpr-tuple-allocation.ll
    M llvm/test/CodeGen/AMDGPU/waterfall-call-target-av-register-failure.ll
    M llvm/test/CodeGen/AMDGPU/wave32.ll
    M llvm/test/CodeGen/AMDGPU/whole-wave-functions.ll
    M llvm/test/CodeGen/AMDGPU/whole-wave-register-copy.ll
    M llvm/test/CodeGen/AMDGPU/whole-wave-register-spill.ll
    M llvm/test/CodeGen/AMDGPU/wwm-reserved-spill.ll

  Log Message:
  -----------
  [AMDGPU] Use register pair for PC spill (#183146)

Change-Id: Ibedeef926f7ff235a06de65a83087c151f66a416



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