test/CodeGen/AMDGPU/s_uaddo_usubo_pseudo.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc -mtriple=amdgcn-amd-amdpal -mcpu=gfx900 -stop-after=amdgpu-isel < %s | FileCheck -check-prefixes=GCN-ISEL %s
; RUN: llc -mtriple=amdgcn-amd-amdpal -mcpu=gfx900 < %s | FileCheck %s
; Ensure that S_UADDO_PSEUDO is selected when carryout user is S_ADD_CO_PSEUDO

; GCN-ISEL-LABEL: name:   s_uaddo_pseudo
; GCN-ISEL-LABEL: body:
; GCN-ISEL: S_UADDO_PSEUDO
; GCN-ISEL: S_ADD_CO_PSEUDO

define amdgpu_ps i32 @s_uaddo_pseudo(i32 inreg %val0) {
; CHECK-LABEL: s_uaddo_pseudo:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    s_add_u32 s0, s0, 1
; CHECK-NEXT:    s_cselect_b64 s[0:1], -1, 0
; CHECK-NEXT:    s_cmp_lg_u64 s[0:1], 0
; CHECK-NEXT:    s_addc_u32 s0, 1, 0
; CHECK-NEXT:    ; return to shader part epilog
  %pair = call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %val0, i32 1)
  %carryout = extractvalue { i32, i1 } %pair, 1
  %zext_carryout = zext i1 %carryout to i32
  %result = add i32 %zext_carryout, 1
  ret i32 %result
}

; GCN-ISEL-LABEL: name:   s_usubo_pseudo
; GCN-ISEL-LABEL: body:
; GCN-ISEL: S_USUBO_PSEUDO
; GCN-ISEL: S_SUB_CO_PSEUDO

define amdgpu_ps i32 @s_usubo_pseudo(i32 inreg %val0, i32 inreg %val1) {
; CHECK-LABEL: s_usubo_pseudo:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    s_sub_u32 s0, s0, 1
; CHECK-NEXT:    s_cselect_b64 s[2:3], -1, 0
; CHECK-NEXT:    s_cmp_lg_u64 s[2:3], 0
; CHECK-NEXT:    s_subb_u32 s0, s1, 0
; CHECK-NEXT:    ; return to shader part epilog
  %pair = call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %val0, i32 1)
  %carryout = extractvalue { i32, i1 } %pair, 1
  %zext_carryout = zext i1 %carryout to i32
  %result = sub i32 %val1, %zext_carryout
  ret i32 %result
}
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; GCN-ISEL: {{.*}}