llvm/test/CodeGen/AMDGPU/inline-asm-clobber-partial-overlap-output.ll

; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 6
; RUN: llc -mtriple=amdgpu9.00 -stop-after=finalize-isel %s -o - | FileCheck %s

;; The clobber partially overlaps the output def, which covers the read.
define <2 x i32> @partial_overlap_output() {
  ; CHECK-LABEL: name: partial_overlap_output
  ; CHECK: bb.0 (%ir-block.0):
  ; CHECK-NEXT:   INLINEASM &"", sideeffect attdialect, regdef, implicit-def $vgpr0_vgpr1, clobber, implicit-def dead early-clobber $vgpr1_vgpr2
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:vreg_64 = COPY $vgpr0_vgpr1
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:vgpr_32 = COPY [[COPY]].sub0
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:vgpr_32 = COPY [[COPY]].sub1
  ; CHECK-NEXT:   $vgpr0 = COPY [[COPY1]]
  ; CHECK-NEXT:   $vgpr1 = COPY [[COPY2]]
  ; CHECK-NEXT:   SI_RETURN implicit $vgpr0, implicit $vgpr1
  %r = call <2 x i32> asm sideeffect "", "={v[0:1]},~{v[1:2]}"()
  ret <2 x i32> %r
}