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213 lines
6.6 KiB
LLVM
213 lines
6.6 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=SI -check-prefix=FUNC %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN -check-prefix=VI -check-prefix=FUNC %s
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declare i32 @llvm.amdgcn.workitem.id.x() nounwind readnone
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declare i32 @llvm.amdgcn.workitem.id.y() nounwind readnone
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; FUNC-LABEL: {{^}}test_umul24_i32:
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; GCN: v_mul_u32_u24
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define void @test_umul24_i32(i32 addrspace(1)* %out, i32 %a, i32 %b) {
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entry:
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%0 = shl i32 %a, 8
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%a_24 = lshr i32 %0, 8
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%1 = shl i32 %b, 8
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%b_24 = lshr i32 %1, 8
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%2 = mul i32 %a_24, %b_24
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store i32 %2, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umul24_i16_sext:
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; SI: v_mul_u32_u24_e{{(32|64)}} [[VI_MUL:v[0-9]]], {{[sv][0-9], [sv][0-9]}}
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; SI: v_bfe_i32 v{{[0-9]}}, [[VI_MUL]], 0, 16
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; VI: s_mul_i32 [[SI_MUL:s[0-9]]], s{{[0-9]}}, s{{[0-9]}}
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; VI: s_sext_i32_i16 s{{[0-9]}}, [[SI_MUL]]
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define void @test_umul24_i16_sext(i32 addrspace(1)* %out, i16 %a, i16 %b) {
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entry:
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%mul = mul i16 %a, %b
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%ext = sext i16 %mul to i32
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store i32 %ext, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umul24_i16_vgpr_sext:
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; GCN: v_mul_u32_u24_e{{(32|64)}} [[MUL:v[0-9]]], {{[sv][0-9], [sv][0-9]}}
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; GCN: v_bfe_i32 v{{[0-9]}}, [[MUL]], 0, 16
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define void @test_umul24_i16_vgpr_sext(i32 addrspace(1)* %out, i16 addrspace(1)* %in) {
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%tid.x = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.y = call i32 @llvm.amdgcn.workitem.id.y()
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%ptr_a = getelementptr i16, i16 addrspace(1)* %in, i32 %tid.x
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%ptr_b = getelementptr i16, i16 addrspace(1)* %in, i32 %tid.y
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%a = load i16, i16 addrspace(1)* %ptr_a
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%b = load i16, i16 addrspace(1)* %ptr_b
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%mul = mul i16 %a, %b
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%val = sext i16 %mul to i32
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store i32 %val, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umul24_i16:
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; SI: s_and_b32
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; SI: v_mul_u32_u24_e32
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; SI: v_and_b32_e32
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; VI: s_mul_i32
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; VI: s_and_b32
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; VI: v_mov_b32_e32
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define void @test_umul24_i16(i32 addrspace(1)* %out, i16 %a, i16 %b) {
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entry:
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%mul = mul i16 %a, %b
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%ext = zext i16 %mul to i32
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store i32 %ext, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umul24_i16_vgpr:
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; GCN: v_mul_u32_u24_e32
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; GCN: v_and_b32_e32
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define void @test_umul24_i16_vgpr(i32 addrspace(1)* %out, i16 addrspace(1)* %in) {
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%tid.x = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.y = call i32 @llvm.amdgcn.workitem.id.y()
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%ptr_a = getelementptr i16, i16 addrspace(1)* %in, i32 %tid.x
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%ptr_b = getelementptr i16, i16 addrspace(1)* %in, i32 %tid.y
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%a = load i16, i16 addrspace(1)* %ptr_a
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%b = load i16, i16 addrspace(1)* %ptr_b
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%mul = mul i16 %a, %b
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%val = zext i16 %mul to i32
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store i32 %val, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umul24_i8:
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; GCN: v_mul_u32_u24_e{{(32|64)}} [[MUL:v[0-9]]], {{[sv][0-9], [sv][0-9]}}
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; GCN: v_bfe_i32 v{{[0-9]}}, [[MUL]], 0, 8
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define void @test_umul24_i8(i32 addrspace(1)* %out, i8 %a, i8 %b) {
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entry:
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%mul = mul i8 %a, %b
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%ext = sext i8 %mul to i32
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store i32 %ext, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umulhi24_i32_i64:
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; GCN-NOT: and
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; GCN: v_mul_hi_u32_u24_e32 [[RESULT:v[0-9]+]],
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; GCN-NEXT: buffer_store_dword [[RESULT]]
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define void @test_umulhi24_i32_i64(i32 addrspace(1)* %out, i32 %a, i32 %b) {
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entry:
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%a.24 = and i32 %a, 16777215
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%b.24 = and i32 %b, 16777215
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%a.24.i64 = zext i32 %a.24 to i64
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%b.24.i64 = zext i32 %b.24 to i64
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%mul48 = mul i64 %a.24.i64, %b.24.i64
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%mul48.hi = lshr i64 %mul48, 32
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%mul24hi = trunc i64 %mul48.hi to i32
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store i32 %mul24hi, i32 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umulhi24:
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; GCN-NOT: and
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; GCN: v_mul_hi_u32_u24_e32 [[RESULT:v[0-9]+]],
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; GCN-NEXT: buffer_store_dword [[RESULT]]
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define void @test_umulhi24(i32 addrspace(1)* %out, i64 %a, i64 %b) {
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entry:
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%a.24 = and i64 %a, 16777215
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%b.24 = and i64 %b, 16777215
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%mul48 = mul i64 %a.24, %b.24
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%mul48.hi = lshr i64 %mul48, 32
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%mul24.hi = trunc i64 %mul48.hi to i32
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store i32 %mul24.hi, i32 addrspace(1)* %out
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ret void
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}
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; Multiply with 24-bit inputs and 64-bit output.
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; FUNC-LABEL: {{^}}test_umul24_i64:
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; GCN-NOT: and
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; GCN-NOT: lshr
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; GCN-DAG: v_mul_u32_u24_e32
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; GCN-DAG: v_mul_hi_u32_u24_e32
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; GCN: buffer_store_dwordx2
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define void @test_umul24_i64(i64 addrspace(1)* %out, i64 %a, i64 %b) {
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entry:
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%tmp0 = shl i64 %a, 40
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%a_24 = lshr i64 %tmp0, 40
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%tmp1 = shl i64 %b, 40
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%b_24 = lshr i64 %tmp1, 40
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%tmp2 = mul i64 %a_24, %b_24
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store i64 %tmp2, i64 addrspace(1)* %out
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ret void
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}
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; FIXME: Should be able to eliminate the and.
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; FUNC-LABEL: {{^}}test_umul24_i64_square:
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; GCN: s_load_dword [[A:s[0-9]+]]
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; GCN: s_and_b32 [[TRUNC:s[0-9]+]], [[A]], 0xffffff{{$}}
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; GCN-DAG: v_mul_hi_u32_u24_e64 v{{[0-9]+}}, [[TRUNC]], [[TRUNC]]
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; GCN-DAG: v_mul_u32_u24_e64 v{{[0-9]+}}, [[TRUNC]], [[TRUNC]]
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define void @test_umul24_i64_square(i64 addrspace(1)* %out, i64 %a) {
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entry:
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%tmp0 = shl i64 %a, 40
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%a.24 = lshr i64 %tmp0, 40
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%tmp2 = mul i64 %a.24, %a.24
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store i64 %tmp2, i64 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umulhi16_i32:
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; GCN: s_and_b32
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; GCN: s_and_b32
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; GCN: v_mul_u32_u24_e32 [[MUL24:v[0-9]+]]
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; GCN: v_lshrrev_b32_e32 v{{[0-9]+}}, 16, [[MUL24]]
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define void @test_umulhi16_i32(i16 addrspace(1)* %out, i32 %a, i32 %b) {
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entry:
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%a.16 = and i32 %a, 65535
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%b.16 = and i32 %b, 65535
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%mul = mul i32 %a.16, %b.16
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%hi = lshr i32 %mul, 16
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%mulhi = trunc i32 %hi to i16
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store i16 %mulhi, i16 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umul24_i33:
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; GCN: s_load_dword s
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; GCN: s_load_dword s
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; GCN-NOT: and
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; GCN-NOT: lshr
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; GCN-DAG: v_mul_u32_u24_e32 v[[MUL_LO:[0-9]+]],
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; GCN-DAG: v_mul_hi_u32_u24_e32 v[[MUL_HI:[0-9]+]],
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; GCN-DAG: v_and_b32_e32 v[[HI:[0-9]+]], 1, v[[MUL_HI]]
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; GCN: buffer_store_dwordx2 v{{\[}}[[MUL_LO]]:[[HI]]{{\]}}
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define void @test_umul24_i33(i64 addrspace(1)* %out, i33 %a, i33 %b) {
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entry:
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%tmp0 = shl i33 %a, 9
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%a_24 = lshr i33 %tmp0, 9
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%tmp1 = shl i33 %b, 9
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%b_24 = lshr i33 %tmp1, 9
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%tmp2 = mul i33 %a_24, %b_24
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%ext = zext i33 %tmp2 to i64
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store i64 %ext, i64 addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_umulhi24_i33:
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; GCN: s_load_dword s
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; GCN: s_load_dword s
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; GCN-NOT: and
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; GCN-NOT: lshr
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; GCN: v_mul_hi_u32_u24_e32 v[[MUL_HI:[0-9]+]],
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; GCN-NEXT: v_and_b32_e32 v[[HI:[0-9]+]], 1, v[[MUL_HI]]
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; GCN-NEXT: buffer_store_dword v[[HI]]
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define void @test_umulhi24_i33(i32 addrspace(1)* %out, i33 %a, i33 %b) {
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entry:
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%tmp0 = shl i33 %a, 9
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%a_24 = lshr i33 %tmp0, 9
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%tmp1 = shl i33 %b, 9
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%b_24 = lshr i33 %tmp1, 9
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%tmp2 = mul i33 %a_24, %b_24
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%hi = lshr i33 %tmp2, 32
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%trunc = trunc i33 %hi to i32
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store i32 %trunc, i32 addrspace(1)* %out
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ret void
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}
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