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clang-p2996/llvm/test/CodeGen/AMDGPU/saddsat.ll
David Green d10f23a25d [ISel] Expand saddsat and ssubsat via asr and xor 
This changes the lowering of saddsat and ssubsat so that instead of
using:
  r,o = saddo x, y
  c = setcc r < 0
  s = c ? INTMAX : INTMIN
  ret o ? s : r
into using asr and xor to materialize the INTMAX/INTMIN constants:
  r,o = saddo x, y
  s = ashr r, BW-1
  x = xor s, INTMIN
  ret o ? x : r
https://alive2.llvm.org/ce/z/TYufgD

This seems to reduce the instruction count in most testcases across most
architectures. X86 has some custom lowering added to compensate for
cases where it can increase instruction count.

Differential Revision: https://reviews.llvm.org/D105853
2021-08-19 16:08:07 +01:00

491 lines
19 KiB
LLVM
Raw Blame History

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=amdgcn-amd-amdpal -mcpu=tahiti < %s | FileCheck --check-prefix=GFX6 %s
; RUN: llc -mtriple=amdgcn-amd-amdpal -mcpu=fiji < %s | FileCheck --check-prefix=GFX8 %s
; RUN: llc -mtriple=amdgcn-amd-amdpal -mcpu=gfx900 < %s | FileCheck --check-prefix=GFX9 %s
; RUN: llc -mtriple=amdgcn-amd-amdpal -mcpu=gfx1010 < %s | FileCheck --check-prefix=GFX10 %s
define i8 @v_saddsat_i8(i8 %lhs, i8 %rhs) {
; GFX6-LABEL: v_saddsat_i8:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_bfe_i32 v1, v1, 0, 8
; GFX6-NEXT: v_bfe_i32 v0, v0, 0, 8
; GFX6-NEXT: v_add_i32_e32 v0, vcc, v0, v1
; GFX6-NEXT: v_min_i32_e32 v0, 0x7f, v0
; GFX6-NEXT: v_max_i32_e32 v0, 0xffffff80, v0
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_saddsat_i8:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_add_u16_sdwa v0, sext(v0), sext(v1) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_0 src1_sel:BYTE_0
; GFX8-NEXT: v_min_i16_e32 v0, 0x7f, v0
; GFX8-NEXT: v_max_i16_e32 v0, 0xff80, v0
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_saddsat_i8:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_lshlrev_b16_e32 v1, 8, v1
; GFX9-NEXT: v_lshlrev_b16_e32 v0, 8, v0
; GFX9-NEXT: v_add_i16 v0, v0, v1 clamp
; GFX9-NEXT: v_ashrrev_i16_e32 v0, 8, v0
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_saddsat_i8:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_lshlrev_b16 v1, 8, v1
; GFX10-NEXT: v_lshlrev_b16 v0, 8, v0
; GFX10-NEXT: v_add_nc_i16 v0, v0, v1 clamp
; GFX10-NEXT: v_ashrrev_i16 v0, 8, v0
; GFX10-NEXT: s_setpc_b64 s[30:31]
%result = call i8 @llvm.sadd.sat.i8(i8 %lhs, i8 %rhs)
ret i8 %result
}
define i16 @v_saddsat_i16(i16 %lhs, i16 %rhs) {
; GFX6-LABEL: v_saddsat_i16:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_bfe_i32 v1, v1, 0, 16
; GFX6-NEXT: v_bfe_i32 v0, v0, 0, 16
; GFX6-NEXT: v_add_i32_e32 v0, vcc, v0, v1
; GFX6-NEXT: v_min_i32_e32 v0, 0x7fff, v0
; GFX6-NEXT: v_max_i32_e32 v0, 0xffff8000, v0
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_saddsat_i16:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_cmp_gt_i16_e32 vcc, 0, v1
; GFX8-NEXT: v_add_u16_e32 v1, v0, v1
; GFX8-NEXT: v_cmp_lt_i16_e64 s[4:5], v1, v0
; GFX8-NEXT: v_ashrrev_i16_e32 v0, 15, v1
; GFX8-NEXT: v_xor_b32_e32 v0, 0xffff8000, v0
; GFX8-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX8-NEXT: v_cndmask_b32_e32 v0, v1, v0, vcc
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_saddsat_i16:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_add_i16 v0, v0, v1 clamp
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_saddsat_i16:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_add_nc_i16 v0, v0, v1 clamp
; GFX10-NEXT: s_setpc_b64 s[30:31]
%result = call i16 @llvm.sadd.sat.i16(i16 %lhs, i16 %rhs)
ret i16 %result
}
define i32 @v_saddsat_i32(i32 %lhs, i32 %rhs) {
; GFX6-LABEL: v_saddsat_i32:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_cmp_gt_i32_e32 vcc, 0, v1
; GFX6-NEXT: v_add_i32_e64 v1, s[4:5], v0, v1
; GFX6-NEXT: v_cmp_lt_i32_e64 s[4:5], v1, v0
; GFX6-NEXT: v_ashrrev_i32_e32 v0, 31, v1
; GFX6-NEXT: v_xor_b32_e32 v0, 0x80000000, v0
; GFX6-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX6-NEXT: v_cndmask_b32_e32 v0, v1, v0, vcc
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_saddsat_i32:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_cmp_gt_i32_e32 vcc, 0, v1
; GFX8-NEXT: v_add_u32_e64 v1, s[4:5], v0, v1
; GFX8-NEXT: v_cmp_lt_i32_e64 s[4:5], v1, v0
; GFX8-NEXT: v_ashrrev_i32_e32 v0, 31, v1
; GFX8-NEXT: v_xor_b32_e32 v0, 0x80000000, v0
; GFX8-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX8-NEXT: v_cndmask_b32_e32 v0, v1, v0, vcc
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_saddsat_i32:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_add_i32 v0, v0, v1 clamp
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_saddsat_i32:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_add_nc_i32 v0, v0, v1 clamp
; GFX10-NEXT: s_setpc_b64 s[30:31]
%result = call i32 @llvm.sadd.sat.i32(i32 %lhs, i32 %rhs)
ret i32 %result
}
define <2 x i16> @v_saddsat_v2i16(<2 x i16> %lhs, <2 x i16> %rhs) {
; GFX6-LABEL: v_saddsat_v2i16:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_bfe_i32 v2, v2, 0, 16
; GFX6-NEXT: v_bfe_i32 v0, v0, 0, 16
; GFX6-NEXT: v_bfe_i32 v3, v3, 0, 16
; GFX6-NEXT: v_bfe_i32 v1, v1, 0, 16
; GFX6-NEXT: v_add_i32_e32 v1, vcc, v1, v3
; GFX6-NEXT: s_movk_i32 s4, 0x7fff
; GFX6-NEXT: v_add_i32_e32 v0, vcc, v0, v2
; GFX6-NEXT: v_min_i32_e32 v1, s4, v1
; GFX6-NEXT: s_movk_i32 s5, 0x8000
; GFX6-NEXT: v_min_i32_e32 v0, s4, v0
; GFX6-NEXT: v_max_i32_e32 v1, s5, v1
; GFX6-NEXT: v_max_i32_e32 v0, s5, v0
; GFX6-NEXT: v_lshlrev_b32_e32 v1, 16, v1
; GFX6-NEXT: v_and_b32_e32 v0, 0xffff, v0
; GFX6-NEXT: v_or_b32_e32 v0, v0, v1
; GFX6-NEXT: v_lshrrev_b32_e32 v1, 16, v0
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_saddsat_v2i16:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_lshrrev_b32_e32 v2, 16, v1
; GFX8-NEXT: v_lshrrev_b32_e32 v3, 16, v0
; GFX8-NEXT: v_add_u16_e32 v4, v3, v2
; GFX8-NEXT: v_cmp_gt_i16_e64 s[4:5], 0, v2
; GFX8-NEXT: v_cmp_lt_i16_e32 vcc, v4, v3
; GFX8-NEXT: v_ashrrev_i16_e32 v2, 15, v4
; GFX8-NEXT: s_movk_i32 s6, 0x8000
; GFX8-NEXT: v_xor_b32_e32 v2, s6, v2
; GFX8-NEXT: s_xor_b64 vcc, s[4:5], vcc
; GFX8-NEXT: v_cndmask_b32_e32 v2, v4, v2, vcc
; GFX8-NEXT: v_cmp_gt_i16_e32 vcc, 0, v1
; GFX8-NEXT: v_add_u16_e32 v1, v0, v1
; GFX8-NEXT: v_cmp_lt_i16_e64 s[4:5], v1, v0
; GFX8-NEXT: v_ashrrev_i16_e32 v0, 15, v1
; GFX8-NEXT: v_xor_b32_e32 v0, s6, v0
; GFX8-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX8-NEXT: v_lshlrev_b32_e32 v2, 16, v2
; GFX8-NEXT: v_cndmask_b32_e32 v0, v1, v0, vcc
; GFX8-NEXT: v_or_b32_sdwa v0, v0, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:DWORD
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_saddsat_v2i16:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_pk_add_i16 v0, v0, v1 clamp
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_saddsat_v2i16:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_pk_add_i16 v0, v0, v1 clamp
; GFX10-NEXT: s_setpc_b64 s[30:31]
%result = call <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16> %lhs, <2 x i16> %rhs)
ret <2 x i16> %result
}
define <3 x i16> @v_saddsat_v3i16(<3 x i16> %lhs, <3 x i16> %rhs) {
; GFX6-LABEL: v_saddsat_v3i16:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_bfe_i32 v3, v3, 0, 16
; GFX6-NEXT: v_bfe_i32 v0, v0, 0, 16
; GFX6-NEXT: v_bfe_i32 v4, v4, 0, 16
; GFX6-NEXT: v_bfe_i32 v1, v1, 0, 16
; GFX6-NEXT: v_bfe_i32 v5, v5, 0, 16
; GFX6-NEXT: v_bfe_i32 v2, v2, 0, 16
; GFX6-NEXT: v_add_i32_e32 v1, vcc, v1, v4
; GFX6-NEXT: s_movk_i32 s4, 0x7fff
; GFX6-NEXT: v_add_i32_e32 v0, vcc, v0, v3
; GFX6-NEXT: v_add_i32_e32 v2, vcc, v2, v5
; GFX6-NEXT: v_min_i32_e32 v1, s4, v1
; GFX6-NEXT: s_movk_i32 s5, 0x8000
; GFX6-NEXT: v_min_i32_e32 v0, s4, v0
; GFX6-NEXT: v_max_i32_e32 v1, s5, v1
; GFX6-NEXT: v_max_i32_e32 v0, s5, v0
; GFX6-NEXT: v_min_i32_e32 v2, s4, v2
; GFX6-NEXT: v_max_i32_e32 v3, s5, v2
; GFX6-NEXT: v_lshlrev_b32_e32 v1, 16, v1
; GFX6-NEXT: v_and_b32_e32 v0, 0xffff, v0
; GFX6-NEXT: v_or_b32_e32 v0, v0, v1
; GFX6-NEXT: v_or_b32_e32 v2, 0xffff0000, v3
; GFX6-NEXT: v_alignbit_b32 v1, v3, v1, 16
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_saddsat_v3i16:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_lshrrev_b32_e32 v4, 16, v2
; GFX8-NEXT: v_lshrrev_b32_e32 v5, 16, v0
; GFX8-NEXT: v_add_u16_e32 v6, v5, v4
; GFX8-NEXT: v_cmp_gt_i16_e64 s[4:5], 0, v4
; GFX8-NEXT: v_cmp_lt_i16_e32 vcc, v6, v5
; GFX8-NEXT: v_ashrrev_i16_e32 v4, 15, v6
; GFX8-NEXT: s_movk_i32 s6, 0x8000
; GFX8-NEXT: v_xor_b32_e32 v4, s6, v4
; GFX8-NEXT: s_xor_b64 vcc, s[4:5], vcc
; GFX8-NEXT: v_cndmask_b32_e32 v4, v6, v4, vcc
; GFX8-NEXT: v_cmp_gt_i16_e32 vcc, 0, v3
; GFX8-NEXT: v_add_u16_e32 v3, v1, v3
; GFX8-NEXT: v_cmp_lt_i16_e64 s[4:5], v3, v1
; GFX8-NEXT: v_ashrrev_i16_e32 v1, 15, v3
; GFX8-NEXT: v_xor_b32_e32 v1, s6, v1
; GFX8-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX8-NEXT: v_cndmask_b32_e32 v1, v3, v1, vcc
; GFX8-NEXT: v_cmp_gt_i16_e32 vcc, 0, v2
; GFX8-NEXT: v_add_u16_e32 v2, v0, v2
; GFX8-NEXT: v_cmp_lt_i16_e64 s[4:5], v2, v0
; GFX8-NEXT: v_ashrrev_i16_e32 v0, 15, v2
; GFX8-NEXT: v_xor_b32_e32 v0, s6, v0
; GFX8-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX8-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc
; GFX8-NEXT: v_lshlrev_b32_e32 v2, 16, v4
; GFX8-NEXT: v_or_b32_sdwa v0, v0, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:DWORD
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_saddsat_v3i16:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_pk_add_i16 v1, v1, v3 clamp
; GFX9-NEXT: v_pk_add_i16 v0, v0, v2 clamp
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_saddsat_v3i16:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_pk_add_i16 v0, v0, v2 clamp
; GFX10-NEXT: v_pk_add_i16 v1, v1, v3 clamp
; GFX10-NEXT: s_setpc_b64 s[30:31]
%result = call <3 x i16> @llvm.sadd.sat.v3i16(<3 x i16> %lhs, <3 x i16> %rhs)
ret <3 x i16> %result
}
define <2 x float> @v_saddsat_v4i16(<4 x i16> %lhs, <4 x i16> %rhs) {
; GFX6-LABEL: v_saddsat_v4i16:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_bfe_i32 v4, v4, 0, 16
; GFX6-NEXT: v_bfe_i32 v0, v0, 0, 16
; GFX6-NEXT: v_bfe_i32 v5, v5, 0, 16
; GFX6-NEXT: v_bfe_i32 v1, v1, 0, 16
; GFX6-NEXT: v_add_i32_e32 v1, vcc, v1, v5
; GFX6-NEXT: s_movk_i32 s4, 0x7fff
; GFX6-NEXT: v_add_i32_e32 v0, vcc, v0, v4
; GFX6-NEXT: v_min_i32_e32 v1, s4, v1
; GFX6-NEXT: s_movk_i32 s5, 0x8000
; GFX6-NEXT: v_min_i32_e32 v0, s4, v0
; GFX6-NEXT: v_max_i32_e32 v1, s5, v1
; GFX6-NEXT: v_max_i32_e32 v0, s5, v0
; GFX6-NEXT: s_mov_b32 s6, 0xffff
; GFX6-NEXT: v_bfe_i32 v6, v6, 0, 16
; GFX6-NEXT: v_bfe_i32 v2, v2, 0, 16
; GFX6-NEXT: v_bfe_i32 v7, v7, 0, 16
; GFX6-NEXT: v_bfe_i32 v3, v3, 0, 16
; GFX6-NEXT: v_lshlrev_b32_e32 v1, 16, v1
; GFX6-NEXT: v_and_b32_e32 v0, s6, v0
; GFX6-NEXT: v_add_i32_e32 v2, vcc, v2, v6
; GFX6-NEXT: v_or_b32_e32 v0, v0, v1
; GFX6-NEXT: v_add_i32_e32 v1, vcc, v3, v7
; GFX6-NEXT: v_min_i32_e32 v1, s4, v1
; GFX6-NEXT: v_min_i32_e32 v2, s4, v2
; GFX6-NEXT: v_max_i32_e32 v1, s5, v1
; GFX6-NEXT: v_max_i32_e32 v2, s5, v2
; GFX6-NEXT: v_lshlrev_b32_e32 v1, 16, v1
; GFX6-NEXT: v_and_b32_e32 v2, s6, v2
; GFX6-NEXT: v_or_b32_e32 v1, v2, v1
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_saddsat_v4i16:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_lshrrev_b32_e32 v4, 16, v2
; GFX8-NEXT: v_lshrrev_b32_e32 v5, 16, v0
; GFX8-NEXT: v_add_u16_e32 v6, v5, v4
; GFX8-NEXT: v_cmp_gt_i16_e64 s[4:5], 0, v4
; GFX8-NEXT: v_cmp_lt_i16_e32 vcc, v6, v5
; GFX8-NEXT: v_ashrrev_i16_e32 v4, 15, v6
; GFX8-NEXT: s_movk_i32 s6, 0x8000
; GFX8-NEXT: v_xor_b32_e32 v4, s6, v4
; GFX8-NEXT: s_xor_b64 vcc, s[4:5], vcc
; GFX8-NEXT: v_cndmask_b32_e32 v4, v6, v4, vcc
; GFX8-NEXT: v_cmp_gt_i16_e32 vcc, 0, v2
; GFX8-NEXT: v_add_u16_e32 v2, v0, v2
; GFX8-NEXT: v_cmp_lt_i16_e64 s[4:5], v2, v0
; GFX8-NEXT: v_ashrrev_i16_e32 v0, 15, v2
; GFX8-NEXT: v_xor_b32_e32 v0, s6, v0
; GFX8-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX8-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc
; GFX8-NEXT: v_lshlrev_b32_e32 v4, 16, v4
; GFX8-NEXT: v_or_b32_sdwa v0, v0, v4 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:DWORD
; GFX8-NEXT: v_lshrrev_b32_e32 v2, 16, v3
; GFX8-NEXT: v_lshrrev_b32_e32 v4, 16, v1
; GFX8-NEXT: v_add_u16_e32 v5, v4, v2
; GFX8-NEXT: v_cmp_gt_i16_e64 s[4:5], 0, v2
; GFX8-NEXT: v_cmp_lt_i16_e32 vcc, v5, v4
; GFX8-NEXT: v_ashrrev_i16_e32 v2, 15, v5
; GFX8-NEXT: v_xor_b32_e32 v2, s6, v2
; GFX8-NEXT: s_xor_b64 vcc, s[4:5], vcc
; GFX8-NEXT: v_cndmask_b32_e32 v2, v5, v2, vcc
; GFX8-NEXT: v_cmp_gt_i16_e32 vcc, 0, v3
; GFX8-NEXT: v_add_u16_e32 v3, v1, v3
; GFX8-NEXT: v_cmp_lt_i16_e64 s[4:5], v3, v1
; GFX8-NEXT: v_ashrrev_i16_e32 v1, 15, v3
; GFX8-NEXT: v_xor_b32_e32 v1, s6, v1
; GFX8-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX8-NEXT: v_lshlrev_b32_e32 v2, 16, v2
; GFX8-NEXT: v_cndmask_b32_e32 v1, v3, v1, vcc
; GFX8-NEXT: v_or_b32_sdwa v1, v1, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:DWORD
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_saddsat_v4i16:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_pk_add_i16 v0, v0, v2 clamp
; GFX9-NEXT: v_pk_add_i16 v1, v1, v3 clamp
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_saddsat_v4i16:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_pk_add_i16 v0, v0, v2 clamp
; GFX10-NEXT: v_pk_add_i16 v1, v1, v3 clamp
; GFX10-NEXT: s_setpc_b64 s[30:31]
%result = call <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16> %lhs, <4 x i16> %rhs)
%cast = bitcast <4 x i16> %result to <2 x float>
ret <2 x float> %cast
}
define <2 x i32> @v_saddsat_v2i32(<2 x i32> %lhs, <2 x i32> %rhs) {
; GFX6-LABEL: v_saddsat_v2i32:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_cmp_gt_i32_e32 vcc, 0, v2
; GFX6-NEXT: v_add_i32_e64 v2, s[4:5], v0, v2
; GFX6-NEXT: v_cmp_lt_i32_e64 s[4:5], v2, v0
; GFX6-NEXT: v_ashrrev_i32_e32 v0, 31, v2
; GFX6-NEXT: s_brev_b32 s6, 1
; GFX6-NEXT: v_xor_b32_e32 v0, s6, v0
; GFX6-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX6-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc
; GFX6-NEXT: v_add_i32_e64 v2, s[4:5], v1, v3
; GFX6-NEXT: v_cmp_lt_i32_e64 s[4:5], v2, v1
; GFX6-NEXT: v_cmp_gt_i32_e32 vcc, 0, v3
; GFX6-NEXT: v_ashrrev_i32_e32 v1, 31, v2
; GFX6-NEXT: v_xor_b32_e32 v1, s6, v1
; GFX6-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX6-NEXT: v_cndmask_b32_e32 v1, v2, v1, vcc
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_saddsat_v2i32:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_cmp_gt_i32_e32 vcc, 0, v2
; GFX8-NEXT: v_add_u32_e64 v2, s[4:5], v0, v2
; GFX8-NEXT: v_cmp_lt_i32_e64 s[4:5], v2, v0
; GFX8-NEXT: v_ashrrev_i32_e32 v0, 31, v2
; GFX8-NEXT: s_brev_b32 s6, 1
; GFX8-NEXT: v_xor_b32_e32 v0, s6, v0
; GFX8-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX8-NEXT: v_cndmask_b32_e32 v0, v2, v0, vcc
; GFX8-NEXT: v_add_u32_e64 v2, s[4:5], v1, v3
; GFX8-NEXT: v_cmp_lt_i32_e64 s[4:5], v2, v1
; GFX8-NEXT: v_cmp_gt_i32_e32 vcc, 0, v3
; GFX8-NEXT: v_ashrrev_i32_e32 v1, 31, v2
; GFX8-NEXT: v_xor_b32_e32 v1, s6, v1
; GFX8-NEXT: s_xor_b64 vcc, vcc, s[4:5]
; GFX8-NEXT: v_cndmask_b32_e32 v1, v2, v1, vcc
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_saddsat_v2i32:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_add_i32 v0, v0, v2 clamp
; GFX9-NEXT: v_add_i32 v1, v1, v3 clamp
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_saddsat_v2i32:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_add_nc_i32 v0, v0, v2 clamp
; GFX10-NEXT: v_add_nc_i32 v1, v1, v3 clamp
; GFX10-NEXT: s_setpc_b64 s[30:31]
%result = call <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32> %lhs, <2 x i32> %rhs)
ret <2 x i32> %result
}
define i64 @v_saddsat_i64(i64 %lhs, i64 %rhs) {
; GFX6-LABEL: v_saddsat_i64:
; GFX6: ; %bb.0:
; GFX6-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX6-NEXT: v_add_i32_e32 v4, vcc, v0, v2
; GFX6-NEXT: v_addc_u32_e32 v5, vcc, v1, v3, vcc
; GFX6-NEXT: v_cmp_lt_i64_e32 vcc, v[4:5], v[0:1]
; GFX6-NEXT: v_cmp_gt_i64_e64 s[4:5], 0, v[2:3]
; GFX6-NEXT: v_ashrrev_i32_e32 v1, 31, v5
; GFX6-NEXT: s_xor_b64 vcc, s[4:5], vcc
; GFX6-NEXT: v_cndmask_b32_e32 v0, v4, v1, vcc
; GFX6-NEXT: v_xor_b32_e32 v1, 0x80000000, v1
; GFX6-NEXT: v_cndmask_b32_e32 v1, v5, v1, vcc
; GFX6-NEXT: s_setpc_b64 s[30:31]
;
; GFX8-LABEL: v_saddsat_i64:
; GFX8: ; %bb.0:
; GFX8-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX8-NEXT: v_add_u32_e32 v4, vcc, v0, v2
; GFX8-NEXT: v_addc_u32_e32 v5, vcc, v1, v3, vcc
; GFX8-NEXT: v_cmp_lt_i64_e32 vcc, v[4:5], v[0:1]
; GFX8-NEXT: v_cmp_gt_i64_e64 s[4:5], 0, v[2:3]
; GFX8-NEXT: v_ashrrev_i32_e32 v1, 31, v5
; GFX8-NEXT: s_xor_b64 vcc, s[4:5], vcc
; GFX8-NEXT: v_cndmask_b32_e32 v0, v4, v1, vcc
; GFX8-NEXT: v_xor_b32_e32 v1, 0x80000000, v1
; GFX8-NEXT: v_cndmask_b32_e32 v1, v5, v1, vcc
; GFX8-NEXT: s_setpc_b64 s[30:31]
;
; GFX9-LABEL: v_saddsat_i64:
; GFX9: ; %bb.0:
; GFX9-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX9-NEXT: v_add_co_u32_e32 v4, vcc, v0, v2
; GFX9-NEXT: v_addc_co_u32_e32 v5, vcc, v1, v3, vcc
; GFX9-NEXT: v_cmp_lt_i64_e32 vcc, v[4:5], v[0:1]
; GFX9-NEXT: v_cmp_gt_i64_e64 s[4:5], 0, v[2:3]
; GFX9-NEXT: v_ashrrev_i32_e32 v1, 31, v5
; GFX9-NEXT: s_xor_b64 vcc, s[4:5], vcc
; GFX9-NEXT: v_cndmask_b32_e32 v0, v4, v1, vcc
; GFX9-NEXT: v_xor_b32_e32 v1, 0x80000000, v1
; GFX9-NEXT: v_cndmask_b32_e32 v1, v5, v1, vcc
; GFX9-NEXT: s_setpc_b64 s[30:31]
;
; GFX10-LABEL: v_saddsat_i64:
; GFX10: ; %bb.0:
; GFX10-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GFX10-NEXT: s_waitcnt_vscnt null, 0x0
; GFX10-NEXT: v_add_co_u32 v4, vcc_lo, v0, v2
; GFX10-NEXT: v_cmp_gt_i64_e64 s4, 0, v[2:3]
; GFX10-NEXT: v_add_co_ci_u32_e32 v5, vcc_lo, v1, v3, vcc_lo
; GFX10-NEXT: v_ashrrev_i32_e32 v6, 31, v5
; GFX10-NEXT: v_cmp_lt_i64_e32 vcc_lo, v[4:5], v[0:1]
; GFX10-NEXT: v_xor_b32_e32 v1, 0x80000000, v6
; GFX10-NEXT: s_xor_b32 vcc_lo, s4, vcc_lo
; GFX10-NEXT: v_cndmask_b32_e32 v0, v4, v6, vcc_lo
; GFX10-NEXT: v_cndmask_b32_e32 v1, v5, v1, vcc_lo
; GFX10-NEXT: s_setpc_b64 s[30:31]
%result = call i64 @llvm.sadd.sat.i64(i64 %lhs, i64 %rhs)
ret i64 %result
}
declare i8 @llvm.sadd.sat.i8(i8, i8) #0
declare i16 @llvm.sadd.sat.i16(i16, i16) #0
declare <2 x i16> @llvm.sadd.sat.v2i16(<2 x i16>, <2 x i16>) #0
declare <3 x i16> @llvm.sadd.sat.v3i16(<3 x i16>, <3 x i16>) #0
declare <4 x i16> @llvm.sadd.sat.v4i16(<4 x i16>, <4 x i16>) #0
declare i32 @llvm.sadd.sat.i32(i32, i32) #0
declare <2 x i32> @llvm.sadd.sat.v2i32(<2 x i32>, <2 x i32>) #0
declare i64 @llvm.sadd.sat.i64(i64, i64) #0
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