[llvm] select v_sat_pk from two i16 or v2i16 (PR #121124)

Pierre van Houtryve via llvm-commits llvm-commits at lists.llvm.org
Wed Jan 8 00:32:53 PST 2025


================
@@ -583,9 +776,523 @@ define <2 x i16> @vec_smin_smax(<2 x i16> %src) {
 ; GISEL-GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_1)
 ; GISEL-GFX11-NEXT:    v_pk_max_i16 v0, v0, 0
 ; GISEL-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX12-LABEL: vec_smin_smax:
+; GISEL-GFX12:       ; %bb.0:
+; GISEL-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_expcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_samplecnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_kmcnt 0x0
+; GISEL-GFX12-NEXT:    v_pk_min_i16 v0, 0xff00ff, v0
+; GISEL-GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GISEL-GFX12-NEXT:    v_pk_max_i16 v0, v0, 0
+; GISEL-GFX12-NEXT:    s_setpc_b64 s[30:31]
+
   %src.min = call <2 x i16> @llvm.smin.v2i16(<2 x i16> %src, <2 x i16> <i16 255, i16 255>)
   %src.clamp = call <2 x i16> @llvm.smax.v2i16(<2 x i16> %src.min, <2 x i16> <i16 0, i16 0>)
   ret <2 x i16> %src.clamp
 }
+define i16 @basic_smax_smin_bit_or(i16 %src0, i16 %src1) {
+; SDAG-VI-LABEL: basic_smax_smin_bit_or:
+; SDAG-VI:       ; %bb.0:
+; SDAG-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-VI-NEXT:    v_max_i16_e32 v0, 0, v0
+; SDAG-VI-NEXT:    v_max_i16_e32 v1, 0, v1
+; SDAG-VI-NEXT:    v_mov_b32_e32 v2, 0xff
+; SDAG-VI-NEXT:    v_min_i16_e32 v0, 0xff, v0
+; SDAG-VI-NEXT:    v_min_i16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; SDAG-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; SDAG-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX9-LABEL: basic_smax_smin_bit_or:
+; SDAG-GFX9:       ; %bb.0:
+; SDAG-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX9-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; SDAG-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX11-LABEL: basic_smax_smin_bit_or:
+; SDAG-GFX11:       ; %bb.0:
+; SDAG-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX11-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; SDAG-GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; SDAG-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX12-LABEL: basic_smax_smin_bit_or:
+; SDAG-GFX12:       ; %bb.0:
+; SDAG-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_expcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_samplecnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_kmcnt 0x0
+; SDAG-GFX12-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; SDAG-GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; SDAG-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX12-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-VI-LABEL: basic_smax_smin_bit_or:
+; GISEL-VI:       ; %bb.0:
+; GISEL-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-VI-NEXT:    v_max_i16_e32 v0, 0, v0
+; GISEL-VI-NEXT:    v_mov_b32_e32 v2, 0xff
+; GISEL-VI-NEXT:    v_max_i16_e32 v1, 0, v1
+; GISEL-VI-NEXT:    v_min_i16_e32 v0, 0xff, v0
+; GISEL-VI-NEXT:    v_min_i16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; GISEL-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; GISEL-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX9-LABEL: basic_smax_smin_bit_or:
+; GISEL-GFX9:       ; %bb.0:
+; GISEL-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX9-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; GISEL-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX11-LABEL: basic_smax_smin_bit_or:
+; GISEL-GFX11:       ; %bb.0:
+; GISEL-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX11-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; GISEL-GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GISEL-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX12-LABEL: basic_smax_smin_bit_or:
+; GISEL-GFX12:       ; %bb.0:
+; GISEL-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_expcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_samplecnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_kmcnt 0x0
+; GISEL-GFX12-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; GISEL-GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GISEL-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX12-NEXT:    s_setpc_b64 s[30:31]
+
+  %src0.max = call i16 @llvm.smax.i16(i16 %src0, i16 0)
+  %src0.clamp = call i16 @llvm.smin.i16(i16 %src0.max, i16 255)
+  %src1.max = call i16 @llvm.smax.i16(i16 %src1, i16 0)
+  %src1.clamp = call i16 @llvm.smin.i16(i16 %src1.max, i16 255)
+  %src0.and = and i16 %src0.clamp, 255
+  %src1.shl = shl i16 %src1.clamp, 8
+  %or = or i16 %src0.and, %src1.shl
+  ret i16 %or
+}
+define i16 @basic_umax_umin_bit_or(i16 %src0, i16 %src1) {
+; SDAG-VI-LABEL: basic_umax_umin_bit_or:
+; SDAG-VI:       ; %bb.0:
+; SDAG-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-VI-NEXT:    v_mov_b32_e32 v2, 0xff
+; SDAG-VI-NEXT:    v_min_u16_e32 v0, 0xff, v0
+; SDAG-VI-NEXT:    v_min_u16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; SDAG-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; SDAG-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX9-LABEL: basic_umax_umin_bit_or:
+; SDAG-GFX9:       ; %bb.0:
+; SDAG-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX9-NEXT:    s_movk_i32 s4, 0xff
+; SDAG-GFX9-NEXT:    v_min_u16_e32 v0, 0xff, v0
+; SDAG-GFX9-NEXT:    v_min_u16_sdwa v1, v1, s4 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; SDAG-GFX9-NEXT:    v_or_b32_e32 v0, v0, v1
+; SDAG-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX11-LABEL: basic_umax_umin_bit_or:
+; SDAG-GFX11:       ; %bb.0:
+; SDAG-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX11-NEXT:    v_min_u16 v1, 0xff, v1
+; SDAG-GFX11-NEXT:    v_min_u16 v0, 0xff, v0
+; SDAG-GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_2) | instskip(NEXT) | instid1(VALU_DEP_1)
+; SDAG-GFX11-NEXT:    v_lshlrev_b16 v1, 8, v1
+; SDAG-GFX11-NEXT:    v_or_b32_e32 v0, v0, v1
+; SDAG-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX12-LABEL: basic_umax_umin_bit_or:
+; SDAG-GFX12:       ; %bb.0:
+; SDAG-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_expcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_samplecnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_kmcnt 0x0
+; SDAG-GFX12-NEXT:    v_min_u16 v1, 0xff, v1
+; SDAG-GFX12-NEXT:    v_min_u16 v0, 0xff, v0
+; SDAG-GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_2) | instskip(NEXT) | instid1(VALU_DEP_1)
+; SDAG-GFX12-NEXT:    v_lshlrev_b16 v1, 8, v1
+; SDAG-GFX12-NEXT:    v_or_b32_e32 v0, v0, v1
+; SDAG-GFX12-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-VI-LABEL: basic_umax_umin_bit_or:
+; GISEL-VI:       ; %bb.0:
+; GISEL-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-VI-NEXT:    v_mov_b32_e32 v2, 0xff
+; GISEL-VI-NEXT:    v_min_u16_e32 v0, 0xff, v0
+; GISEL-VI-NEXT:    v_min_u16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; GISEL-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; GISEL-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX9-LABEL: basic_umax_umin_bit_or:
+; GISEL-GFX9:       ; %bb.0:
+; GISEL-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX9-NEXT:    v_mov_b32_e32 v2, 0xff
+; GISEL-GFX9-NEXT:    v_min_u16_e32 v0, 0xff, v0
+; GISEL-GFX9-NEXT:    v_min_u16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; GISEL-GFX9-NEXT:    v_or_b32_e32 v0, v0, v1
+; GISEL-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX11-LABEL: basic_umax_umin_bit_or:
+; GISEL-GFX11:       ; %bb.0:
+; GISEL-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX11-NEXT:    v_min_u16 v1, 0xff, v1
+; GISEL-GFX11-NEXT:    v_min_u16 v0, 0xff, v0
+; GISEL-GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_2) | instskip(NEXT) | instid1(VALU_DEP_1)
+; GISEL-GFX11-NEXT:    v_lshlrev_b16 v1, 8, v1
+; GISEL-GFX11-NEXT:    v_or_b32_e32 v0, v0, v1
+; GISEL-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX12-LABEL: basic_umax_umin_bit_or:
+; GISEL-GFX12:       ; %bb.0
+; GISEL-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_expcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_samplecnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_kmcnt 0x0
+; GISEL-GFX12-NEXT:    v_min_u16 v1, 0xff, v1
+; GISEL-GFX12-NEXT:    v_min_u16 v0, 0xff, v0
+; GISEL-GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_2) | instskip(NEXT) | instid1(VALU_DEP_1)
+; GISEL-GFX12-NEXT:    v_lshlrev_b16 v1, 8, v1
+; GISEL-GFX12-NEXT:    v_or_b32_e32 v0, v0, v1
+; GISEL-GFX12-NEXT:    s_setpc_b64 s[30:31]
+
+  %src0.max = call i16 @llvm.umax.i16(i16 %src0, i16 0)
+  %src0.clamp = call i16 @llvm.umin.i16(i16 %src0.max, i16 255)
+  %src1.max = call i16 @llvm.umax.i16(i16 %src1, i16 0)
+  %src1.clamp = call i16 @llvm.umin.i16(i16 %src1.max, i16 255)
+  %src0.and = and i16 %src0.clamp, 255
+  %src1.shl = shl i16 %src1.clamp, 8
+  %or = or i16 %src0.and, %src1.shl
+  ret i16 %or
+}
+define i16 @basic_smax_smin_vec_cast(i16 %src0, i16 %src1) {
+; SDAG-VI-LABEL: basic_smax_smin_vec_cast:
+; SDAG-VI:       ; %bb.0:
+; SDAG-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-VI-NEXT:    v_max_i16_e32 v0, 0, v0
+; SDAG-VI-NEXT:    v_max_i16_e32 v1, 0, v1
+; SDAG-VI-NEXT:    v_mov_b32_e32 v2, 0xff
+; SDAG-VI-NEXT:    v_min_i16_e32 v0, 0xff, v0
+; SDAG-VI-NEXT:    v_min_i16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; SDAG-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; SDAG-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX9-LABEL: basic_smax_smin_vec_cast:
+; SDAG-GFX9:       ; %bb.0:
+; SDAG-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX9-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; SDAG-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX11-LABEL: basic_smax_smin_vec_cast:
+; SDAG-GFX11:       ; %bb.0:
+; SDAG-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX11-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; SDAG-GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; SDAG-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX12-LABEL: basic_smax_smin_vec_cast:
+; SDAG-GFX12:       ; %bb.0:
+; SDAG-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_expcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_samplecnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_kmcnt 0x0
+; SDAG-GFX12-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; SDAG-GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; SDAG-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX12-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-VI-LABEL: basic_smax_smin_vec_cast:
+; GISEL-VI:       ; %bb.0:
+; GISEL-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-VI-NEXT:    v_max_i16_e32 v0, 0, v0
+; GISEL-VI-NEXT:    v_mov_b32_e32 v2, 0xff
+; GISEL-VI-NEXT:    v_max_i16_e32 v1, 0, v1
+; GISEL-VI-NEXT:    v_min_i16_e32 v0, 0xff, v0
+; GISEL-VI-NEXT:    v_min_i16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; GISEL-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; GISEL-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX9-LABEL: basic_smax_smin_vec_cast:
+; GISEL-GFX9:       ; %bb.0:
+; GISEL-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX9-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; GISEL-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX11-LABEL: basic_smax_smin_vec_cast:
+; GISEL-GFX11:       ; %bb.0:
+; GISEL-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX11-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; GISEL-GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GISEL-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX12-LABEL: basic_smax_smin_vec_cast:
+; GISEL-GFX12:       ; %bb.0:
+; GISEL-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_expcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_samplecnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_kmcnt 0x0
+; GISEL-GFX12-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; GISEL-GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GISEL-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX12-NEXT:    s_setpc_b64 s[30:31]
+    
+  %src0.max = call i16 @llvm.smax.i16(i16 %src0, i16 0)
+  %src0.clamp = call i16 @llvm.smin.i16(i16 %src0.max, i16 255)
+  %src1.max = call i16 @llvm.smax.i16(i16 %src1, i16 0)
+  %src1.clamp = call i16 @llvm.smin.i16(i16 %src1.max, i16 255)
+  %insert.0 = insertelement <2 x i16> undef, i16 %src0.clamp, i32 0
+  %vec = insertelement <2 x i16> %insert.0, i16 %src1.clamp, i32 1
+  %vec.trunc = trunc <2 x i16> %vec to <2 x i8>
+  %cast = bitcast <2 x i8> %vec.trunc to i16
+  ret i16 %cast
+}
+define i16 @basic_smax_smin_bit_shl(i16 %src0, i16 %src1) {
+; SDAG-VI-LABEL: basic_smax_smin_bit_shl:
+; SDAG-VI:       ; %bb.0:
+; SDAG-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-VI-NEXT:    v_max_i16_e32 v0, 0, v0
+; SDAG-VI-NEXT:    v_mov_b32_e32 v2, 0
+; SDAG-VI-NEXT:    v_min_i16_e32 v0, 0xff, v0
+; SDAG-VI-NEXT:    v_max_i16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; SDAG-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; SDAG-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX9-LABEL: basic_smax_smin_bit_shl:
+; SDAG-GFX9:       ; %bb.0:
+; SDAG-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX9-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; SDAG-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX11-LABEL: basic_smax_smin_bit_shl:
+; SDAG-GFX11:       ; %bb.0:
+; SDAG-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX11-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; SDAG-GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; SDAG-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX12-LABEL: basic_smax_smin_bit_shl:
+; SDAG-GFX12:       ; %bb.0:
+; SDAG-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_expcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_samplecnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_kmcnt 0x0
+; SDAG-GFX12-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; SDAG-GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; SDAG-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX12-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-VI-LABEL: basic_smax_smin_bit_shl:
+; GISEL-VI:       ; %bb.0:
+; GISEL-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-VI-NEXT:    v_max_i16_e32 v0, 0, v0
+; GISEL-VI-NEXT:    v_mov_b32_e32 v2, 0
+; GISEL-VI-NEXT:    v_min_i16_e32 v0, 0xff, v0
+; GISEL-VI-NEXT:    v_max_i16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; GISEL-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; GISEL-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX9-LABEL: basic_smax_smin_bit_shl:
+; GISEL-GFX9:       ; %bb.0:
+; GISEL-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX9-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; GISEL-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX11-LABEL: basic_smax_smin_bit_shl:
+; GISEL-GFX11:       ; %bb.0:
+; GISEL-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX11-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; GISEL-GFX11-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GISEL-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX12-LABEL: basic_smax_smin_bit_shl:
+; GISEL-GFX12:       ; %bb.0:
+; GISEL-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_expcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_samplecnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_kmcnt 0x0
+; GISEL-GFX12-NEXT:    v_lshl_or_b32 v0, v1, 16, v0
+; GISEL-GFX12-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GISEL-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX12-NEXT:    s_setpc_b64 s[30:31]
+
+  %src0.max = call i16 @llvm.smax.i16(i16 %src0, i16 0)
+  %src0.clamp = call i16 @llvm.smin.i16(i16 %src0.max, i16 255)
+  %src1.max = call i16 @llvm.smax.i16(i16 %src1, i16 0)
+  %src1.shl = shl i16 %src1.max, 8
+  %or = or i16 %src0.clamp, %src1.shl
+  ret i16 %or
+}
+define i16 @basic_smax_smin_vec_input(<2 x i16> %src) {
+; SDAG-VI-LABEL: basic_smax_smin_vec_input:
+; SDAG-VI:       ; %bb.0:
+; SDAG-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-VI-NEXT:    v_mov_b32_e32 v1, 0xff
+; SDAG-VI-NEXT:    v_min_i16_sdwa v1, v0, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
+; SDAG-VI-NEXT:    v_min_i16_e32 v0, 0xff, v0
+; SDAG-VI-NEXT:    v_mov_b32_e32 v2, 0
+; SDAG-VI-NEXT:    v_max_i16_e32 v0, 0, v0
+; SDAG-VI-NEXT:    v_max_i16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; SDAG-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; SDAG-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX9-LABEL: basic_smax_smin_vec_input:
+; SDAG-GFX9:       ; %bb.0:
+; SDAG-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX11-LABEL: basic_smax_smin_vec_input:
+; SDAG-GFX11:       ; %bb.0:
+; SDAG-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX12-LABEL: basic_smax_smin_vec_input:
+; SDAG-GFX12:       ; %bb.0:
+; SDAG-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_expcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_samplecnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_kmcnt 0x0
+; SDAG-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX12-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-VI-LABEL: basic_smax_smin_vec_input:
+; GISEL-VI:       ; %bb.0:
+; GISEL-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-VI-NEXT:    v_mov_b32_e32 v1, 0xff
+; GISEL-VI-NEXT:    v_min_i16_e32 v2, 0xff, v0
+; GISEL-VI-NEXT:    v_min_i16_sdwa v0, v0, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
+; GISEL-VI-NEXT:    v_max_i16_e32 v0, 0, v0
+; GISEL-VI-NEXT:    v_and_b32_e32 v0, 0xff, v0
+; GISEL-VI-NEXT:    v_max_i16_e32 v1, 0, v2
+; GISEL-VI-NEXT:    v_lshlrev_b16_e32 v0, 8, v0
+; GISEL-VI-NEXT:    v_or_b32_sdwa v0, v1, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_0 src1_sel:DWORD
+; GISEL-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX9-LABEL: basic_smax_smin_vec_input:
+; GISEL-GFX9:       ; %bb.0:
+; GISEL-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX11-LABEL: basic_smax_smin_vec_input:
+; GISEL-GFX11:       ; %bb.0:
+; GISEL-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX12-LABEL: basic_smax_smin_vec_input:
+; GISEL-GFX12:       ; %bb.0:
+; GISEL-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_expcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_samplecnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_kmcnt 0x0
+; GISEL-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX12-NEXT:    s_setpc_b64 s[30:31]
+
+  %smin = call <2 x i16> @llvm.smin.v2i16(<2 x i16> <i16 255, i16 255>, <2 x i16> %src)
+  %smed = call <2 x i16> @llvm.smax.v2i16(<2 x i16> <i16 0, i16 0>, <2 x i16> %smin)
+  %vec.trunc = trunc <2 x i16> %smed to <2 x i8>
+  %cast = bitcast <2 x i8> %vec.trunc to i16
+  ret i16 %cast
+}
+define i16 @basic_smax_smin_vec_input_rev(<2 x i16> %src) {
+; SDAG-VI-LABEL: basic_smax_smin_vec_input_rev:
+; SDAG-VI:       ; %bb.0:
+; SDAG-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-VI-NEXT:    v_mov_b32_e32 v1, 0
+; SDAG-VI-NEXT:    v_max_i16_sdwa v1, v0, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
+; SDAG-VI-NEXT:    v_max_i16_e32 v0, 0, v0
+; SDAG-VI-NEXT:    v_mov_b32_e32 v2, 0xff
+; SDAG-VI-NEXT:    v_min_i16_e32 v0, 0xff, v0
+; SDAG-VI-NEXT:    v_min_i16_sdwa v1, v1, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; SDAG-VI-NEXT:    v_or_b32_e32 v0, v0, v1
+; SDAG-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX9-LABEL: basic_smax_smin_vec_input_rev:
+; SDAG-GFX9:       ; %bb.0:
+; SDAG-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX11-LABEL: basic_smax_smin_vec_input_rev:
+; SDAG-GFX11:       ; %bb.0:
+; SDAG-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; SDAG-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; SDAG-GFX12-LABEL: basic_smax_smin_vec_input_rev:
+; SDAG-GFX12:       ; %bb.0:
+; SDAG-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_expcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_samplecnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; SDAG-GFX12-NEXT:    s_wait_kmcnt 0x0
+; SDAG-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; SDAG-GFX12-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-VI-LABEL: basic_smax_smin_vec_input_rev:
+; GISEL-VI:       ; %bb.0:
+; GISEL-VI-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-VI-NEXT:    v_mov_b32_e32 v2, 0
+; GISEL-VI-NEXT:    v_max_i16_e32 v1, 0, v0
+; GISEL-VI-NEXT:    v_max_i16_sdwa v0, v0, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:DWORD
+; GISEL-VI-NEXT:    v_mov_b32_e32 v2, 0xff
+; GISEL-VI-NEXT:    v_min_i16_e32 v1, 0xff, v1
+; GISEL-VI-NEXT:    v_min_i16_sdwa v0, v0, v2 dst_sel:BYTE_1 dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:DWORD
+; GISEL-VI-NEXT:    v_or_b32_e32 v0, v1, v0
+; GISEL-VI-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX9-LABEL: basic_smax_smin_vec_input_rev:
+; GISEL-GFX9:       ; %bb.0:
+; GISEL-GFX9-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX9-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX9-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX11-LABEL: basic_smax_smin_vec_input_rev:
+; GISEL-GFX11:       ; %bb.0:
+; GISEL-GFX11-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GISEL-GFX11-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX11-NEXT:    s_setpc_b64 s[30:31]
+;
+; GISEL-GFX12-LABEL: basic_smax_smin_vec_input_rev:
+; GISEL-GFX12:       ; %bb.0:
+; GISEL-GFX12-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_expcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_samplecnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_bvhcnt 0x0
+; GISEL-GFX12-NEXT:    s_wait_kmcnt 0x0
+; GISEL-GFX12-NEXT:    v_sat_pk_u8_i16_e32 v0, v0
+; GISEL-GFX12-NEXT:    s_setpc_b64 s[30:31]
+
+  %smax = call <2 x i16> @llvm.smax.v2i16(<2 x i16> <i16 0, i16 0>, <2 x i16> %src)
+  %smed = call <2 x i16> @llvm.smin.v2i16(<2 x i16> <i16 255, i16 255>, <2 x i16> %smax)
+  %vec.trunc = trunc <2 x i16> %smed to <2 x i8>
+  %cast = bitcast <2 x i8> %vec.trunc to i16
+  ret i16 %cast
+}
----------------
Pierre-vh wrote:

Can you precommit the tests, or do a force push with the first commit only containing the tests + check lines generated without the changes? I would like to see the before/after

https://github.com/llvm/llvm-project/pull/121124


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