; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=amdgcn -mcpu=tahiti -verify-machineinstrs | FileCheck %s -enable-var-scope -check-prefixes=GCN,SI
; RUN: llc < %s -mtriple=amdgcn -mcpu=fiji -verify-machineinstrs | FileCheck %s -enable-var-scope -check-prefixes=GCN,VI
; Make sure high constant 0 isn't pointlessly materialized
define i16 @trunc_bitcast_i64_lshr_32_i16(i64 %bar) {
; GCN-LABEL: trunc_bitcast_i64_lshr_32_i16:
; GCN: ; %bb.0:
; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT: v_mov_b32_e32 v0, v1
; GCN-NEXT: s_setpc_b64 s[30:31]
%srl = lshr i64 %bar, 32
%trunc = trunc i64 %srl to i16
ret i16 %trunc
}
define i32 @trunc_bitcast_i64_lshr_32_i32(i64 %bar) {
; GCN-LABEL: trunc_bitcast_i64_lshr_32_i32:
; GCN: ; %bb.0:
; GCN-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; GCN-NEXT: v_mov_b32_e32 v0, v1
; GCN-NEXT: s_setpc_b64 s[30:31]
%srl = lshr i64 %bar, 32
%trunc = trunc i64 %srl to i32
ret i32 %trunc
}
define i16 @trunc_bitcast_v2i32_to_i16(<2 x i32> %bar) {
; SI-LABEL: trunc_bitcast_v2i32_to_i16:
; SI: ; %bb.0:
; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; SI-NEXT: s_mov_b32 s7, 0xf000
; SI-NEXT: s_mov_b32 s6, -1
; SI-NEXT: buffer_load_dword v0, off, s[4:7], 0
; SI-NEXT: s_waitcnt vmcnt(0)
; SI-NEXT: v_add_i32_e32 v0, vcc, 4, v0
; SI-NEXT: s_setpc_b64 s[30:31]
;
; VI-LABEL: trunc_bitcast_v2i32_to_i16:
; VI: ; %bb.0:
; VI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; VI-NEXT: flat_load_dword v0, v[0:1]
; VI-NEXT: s_waitcnt vmcnt(0)
; VI-NEXT: v_add_u32_e32 v0, vcc, 4, v0
; VI-NEXT: s_setpc_b64 s[30:31]
%load0 = load i32, ptr addrspace(1) undef
%load1 = load i32, ptr addrspace(1) null
%insert.0 = insertelement <2 x i32> undef, i32 %load0, i32 0
%insert.1 = insertelement <2 x i32> %insert.0, i32 99, i32 1
%bc = bitcast <2 x i32> %insert.1 to i64
%trunc = trunc i64 %bc to i16
%add = add i16 %trunc, 4
ret i16 %add
}
; Make sure there's no crash if the source vector type is FP
define i16 @trunc_bitcast_v2f32_to_i16(<2 x float> %bar) {
; SI-LABEL: trunc_bitcast_v2f32_to_i16:
; SI: ; %bb.0:
; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; SI-NEXT: s_mov_b32 s7, 0xf000
; SI-NEXT: s_mov_b32 s6, -1
; SI-NEXT: buffer_load_dword v0, off, s[4:7], 0
; SI-NEXT: s_waitcnt vmcnt(0)
; SI-NEXT: v_add_i32_e32 v0, vcc, 4, v0
; SI-NEXT: s_setpc_b64 s[30:31]
;
; VI-LABEL: trunc_bitcast_v2f32_to_i16:
; VI: ; %bb.0:
; VI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; VI-NEXT: flat_load_dword v0, v[0:1]
; VI-NEXT: s_waitcnt vmcnt(0)
; VI-NEXT: v_add_u32_e32 v0, vcc, 4, v0
; VI-NEXT: s_setpc_b64 s[30:31]
%load0 = load float, ptr addrspace(1) undef
%load1 = load float, ptr addrspace(1) null
%insert.0 = insertelement <2 x float> undef, float %load0, i32 0
%insert.1 = insertelement <2 x float> %insert.0, float 4.0, i32 1
%bc = bitcast <2 x float> %insert.1 to i64
%trunc = trunc i64 %bc to i16
%add = add i16 %trunc, 4
ret i16 %add
}
define amdgpu_kernel void @truncate_high_elt_extract_vector(ptr addrspace(1) nocapture readonly %arg, ptr addrspace(1) nocapture readonly %arg1, ptr addrspace(1) nocapture %arg2) local_unnamed_addr {
; SI-LABEL: truncate_high_elt_extract_vector:
; SI: ; %bb.0: ; %bb
; SI-NEXT: s_load_dwordx4 s[4:7], s[2:3], 0x9
; SI-NEXT: s_load_dwordx2 s[0:1], s[2:3], 0xd
; SI-NEXT: s_mov_b32 s3, 0xf000
; SI-NEXT: s_mov_b32 s2, -1
; SI-NEXT: s_waitcnt lgkmcnt(0)
; SI-NEXT: s_load_dword s4, s[4:5], 0x0
; SI-NEXT: s_load_dword s5, s[6:7], 0x0
; SI-NEXT: s_waitcnt lgkmcnt(0)
; SI-NEXT: s_sext_i32_i16 s4, s4
; SI-NEXT: s_sext_i32_i16 s5, s5
; SI-NEXT: s_mul_i32 s5, s5, s4
; SI-NEXT: s_lshr_b32 s4, s5, 16
; SI-NEXT: v_mov_b32_e32 v0, s4
; SI-NEXT: buffer_store_dword v0, off, s[0:3], 0
; SI-NEXT: s_endpgm
;
; VI-LABEL: truncate_high_elt_extract_vector:
; VI: ; %bb.0: ; %bb
; VI-NEXT: s_load_dwordx4 s[4:7], s[2:3], 0x24
; VI-NEXT: s_load_dwordx2 s[0:1], s[2:3], 0x34
; VI-NEXT: s_waitcnt lgkmcnt(0)
; VI-NEXT: s_load_dword s2, s[4:5], 0x0
; VI-NEXT: s_load_dword s3, s[6:7], 0x0
; VI-NEXT: v_mov_b32_e32 v0, s0
; VI-NEXT: v_mov_b32_e32 v1, s1
; VI-NEXT: s_waitcnt lgkmcnt(0)
; VI-NEXT: s_sext_i32_i16 s0, s2
; VI-NEXT: s_sext_i32_i16 s1, s3
; VI-NEXT: s_mul_i32 s1, s1, s0
; VI-NEXT: s_lshr_b32 s0, s1, 16
; VI-NEXT: v_mov_b32_e32 v2, s0
; VI-NEXT: flat_store_dword v[0:1], v2
; VI-NEXT: s_endpgm
bb:
%tmp = getelementptr inbounds <2 x i16>, ptr addrspace(1) %arg, i64 undef
%tmp3 = load <2 x i16>, ptr addrspace(1) %tmp, align 4
%tmp4 = getelementptr inbounds <2 x i16>, ptr addrspace(1) %arg1, i64 undef
%tmp5 = load <2 x i16>, ptr addrspace(1) %tmp4, align 4
%tmp6 = sext <2 x i16> %tmp3 to <2 x i32>
%tmp7 = sext <2 x i16> %tmp5 to <2 x i32>
%tmp8 = extractelement <2 x i32> %tmp6, i64 0
%tmp9 = extractelement <2 x i32> %tmp7, i64 0
%tmp10 = mul nsw i32 %tmp9, %tmp8
%tmp11 = insertelement <2 x i32> undef, i32 %tmp10, i32 0
%tmp12 = insertelement <2 x i32> %tmp11, i32 undef, i32 1
%tmp13 = lshr <2 x i32> %tmp12, <i32 16, i32 16>
%tmp14 = trunc <2 x i32> %tmp13 to <2 x i16>
%tmp15 = getelementptr inbounds <2 x i16>, ptr addrspace(1) %arg2, i64 undef
store <2 x i16> %tmp14, ptr addrspace(1) %tmp15, align 4
ret void
}
define <2 x i16> @trunc_v2i64_arg_to_v2i16(<2 x i64> %arg0) #0 {
; SI-LABEL: trunc_v2i64_arg_to_v2i16:
; SI: ; %bb.0:
; SI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; SI-NEXT: v_lshlrev_b32_e32 v1, 16, v2
; SI-NEXT: v_and_b32_e32 v0, 0xffff, v0
; SI-NEXT: v_or_b32_e32 v0, v0, v1
; SI-NEXT: v_and_b32_e32 v1, 0xffff, v2
; SI-NEXT: s_setpc_b64 s[30:31]
;
; VI-LABEL: trunc_v2i64_arg_to_v2i16:
; VI: ; %bb.0:
; VI-NEXT: s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
; VI-NEXT: s_mov_b32 s4, 0x1000504
; VI-NEXT: v_perm_b32 v0, v0, v2, s4
; VI-NEXT: s_setpc_b64 s[30:31]
%trunc = trunc <2 x i64> %arg0 to <2 x i16>
ret <2 x i16> %trunc
}
Codebase Browser
llvm