llvm/test/CodeGen/AMDGPU/bug-vopc-commute.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
; RUN: llc -mtriple=amdgcn -mcpu=verde < %s | FileCheck -check-prefix=GFX6 %s
; RUN: llc -mtriple=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=GFX8 %s

; Test for compilation only. This generated an invalid machine instruction
; by trying to commute the operands of a V_CMP_EQ_i32_e32 instruction, both
; of which were in SGPRs.
define amdgpu_vs float @main(i32 %v) {
; GFX6-LABEL: main:
; GFX6:       ; %bb.0: ; %main_body
; GFX6-NEXT:    s_cbranch_scc1 .LBB0_2
; GFX6-NEXT:  ; %bb.1: ; %IF57
; GFX6-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
; GFX6-NEXT:  .LBB0_2: ; %ENDIF56
; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], 0xf0
; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
; GFX6-NEXT:    s_cmp_eq_u32 s0, 0
; GFX6-NEXT:    s_cbranch_scc1 .LBB0_4
; GFX6-NEXT:  ; %bb.3: ; %IF60
; GFX6-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
; GFX6-NEXT:  .LBB0_4: ; %ENDIF59
; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], 0xf4
; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
; GFX6-NEXT:    s_cmp_eq_u32 s0, 0
; GFX6-NEXT:    s_cbranch_scc0 .LBB0_6
; GFX6-NEXT:  ; %bb.5: ; %ENDIF62
; GFX6-NEXT:    s_branch .LBB0_7
; GFX6-NEXT:  .LBB0_6: ; %IF63
; GFX6-NEXT:  .LBB0_7:
;
; GFX8-LABEL: main:
; GFX8:       ; %bb.0: ; %main_body
; GFX8-NEXT:    s_cbranch_scc1 .LBB0_2
; GFX8-NEXT:  ; %bb.1: ; %IF57
; GFX8-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
; GFX8-NEXT:  .LBB0_2: ; %ENDIF56
; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], 0x3c0
; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
; GFX8-NEXT:    s_cmp_eq_u32 s0, 0
; GFX8-NEXT:    s_cbranch_scc1 .LBB0_4
; GFX8-NEXT:  ; %bb.3: ; %IF60
; GFX8-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
; GFX8-NEXT:  .LBB0_4: ; %ENDIF59
; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], 0x3d0
; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
; GFX8-NEXT:    s_cmp_eq_u32 s0, 0
; GFX8-NEXT:    s_cbranch_scc0 .LBB0_6
; GFX8-NEXT:  ; %bb.5: ; %ENDIF62
; GFX8-NEXT:    s_branch .LBB0_7
; GFX8-NEXT:  .LBB0_6: ; %IF63
; GFX8-NEXT:  .LBB0_7:
main_body:
  %d1 = call float @llvm.amdgcn.s.buffer.load.f32(<4 x i32> poison, i32 960, i32 0)
  %d2 = call float @llvm.amdgcn.s.buffer.load.f32(<4 x i32> poison, i32 976, i32 0)
  br i1 poison, label %ENDIF56, label %IF57

IF57:                                             ; preds = %ENDIF
  %v.1 = mul i32 %v, 2
  br label %ENDIF56

ENDIF56:                                          ; preds = %IF57, %ENDIF
  %v.2 = phi i32 [ %v, %main_body ], [ %v.1, %IF57 ]
  %d1.i = bitcast float %d1 to i32
  %cc1 = icmp eq i32 %d1.i, 0
  br i1 %cc1, label %ENDIF59, label %IF60

IF60:                                             ; preds = %ENDIF56
  %v.3 = mul i32 %v.2, 2
  br label %ENDIF59

ENDIF59:                                          ; preds = %IF60, %ENDIF56
  %v.4 = phi i32 [ %v.2, %ENDIF56 ], [ %v.3, %IF60 ]
  %d2.i = bitcast float %d2 to i32
  %cc2 = icmp eq i32 %d2.i, 0
  br i1 %cc2, label %ENDIF62, label %IF63

IF63:                                             ; preds = %ENDIF59
  unreachable

ENDIF62:                                          ; preds = %ENDIF59
  %r = bitcast i32 %v.4 to float
  ret float %r
}

declare float @llvm.amdgcn.s.buffer.load.f32(<4 x i32>, i32, i32) #0

attributes #0 = { nounwind readnone }
attributes #1 = { readnone }