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[WebAssembly] Remove unused memory instructions and patterns

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Summary:
Removes duplicated SIMD loads and store instructions and removes
patterns involving GlobalAddresses that were not used in any tests.

Reviewers: aheejin, sunfish

Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, jfb, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67783

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@372648 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Thomas Lively 2019-09-23 20:04:59 +00:00
parent b42778439f
commit 2448b38fbf
3 changed files with 0 additions and 130 deletions
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77
lib/Target/WebAssembly/WebAssemblyInstrAtomics.td
View File

@ -71,12 +71,6 @@ class NotifyPatImmOff<PatFrag operand> :
def : NotifyPatImmOff<regPlusImm>;
def : NotifyPatImmOff<or_is_add>;
def NotifyPatGlobalAddr :
Pat<(i32 (int_wasm_atomic_notify (regPlusGA I32:$addr,
(WebAssemblywrapper tglobaladdr:$off)),
I32:$count)),
(ATOMIC_NOTIFY 0, tglobaladdr:$off, I32:$addr, I32:$count)>;
// Select notifys with just a constant offset.
def NotifyPatOffsetOnly :
Pat<(i32 (int_wasm_atomic_notify imm:$off, I32:$count)),
@ -105,13 +99,6 @@ def : WaitPatImmOff<i32, int_wasm_atomic_wait_i32, or_is_add, ATOMIC_WAIT_I32>;
def : WaitPatImmOff<i64, int_wasm_atomic_wait_i64, regPlusImm, ATOMIC_WAIT_I64>;
def : WaitPatImmOff<i64, int_wasm_atomic_wait_i64, or_is_add, ATOMIC_WAIT_I64>;
class WaitPatGlobalAddr<ValueType ty, Intrinsic kind, NI inst> :
Pat<(i32 (kind (regPlusGA I32:$addr, (WebAssemblywrapper tglobaladdr:$off)),
ty:$exp, I64:$timeout)),
(inst 0, tglobaladdr:$off, I32:$addr, ty:$exp, I64:$timeout)>;
def : WaitPatGlobalAddr<i32, int_wasm_atomic_wait_i32, ATOMIC_WAIT_I32>;
def : WaitPatGlobalAddr<i64, int_wasm_atomic_wait_i64, ATOMIC_WAIT_I64>;
// Select wait_i32, ATOMIC_WAIT_I32s with just a constant offset.
class WaitPatOffsetOnly<ValueType ty, Intrinsic kind, NI inst> :
Pat<(i32 (kind imm:$off, ty:$exp, I64:$timeout)),
@ -164,9 +151,6 @@ def : LoadPatImmOff<i64, atomic_load_64, regPlusImm, ATOMIC_LOAD_I64>;
def : LoadPatImmOff<i32, atomic_load_32, or_is_add, ATOMIC_LOAD_I32>;
def : LoadPatImmOff<i64, atomic_load_64, or_is_add, ATOMIC_LOAD_I64>;
def : LoadPatGlobalAddr<i32, atomic_load_32, ATOMIC_LOAD_I32>;
def : LoadPatGlobalAddr<i64, atomic_load_64, ATOMIC_LOAD_I64>;
// Select loads with just a constant offset.
def : LoadPatOffsetOnly<i32, atomic_load_32, ATOMIC_LOAD_I32>;
def : LoadPatOffsetOnly<i64, atomic_load_64, ATOMIC_LOAD_I64>;
@ -257,16 +241,6 @@ def : LoadPatImmOff<i64, sext_aload_8_64, or_is_add, ATOMIC_LOAD8_U_I64>;
def : LoadPatImmOff<i64, sext_aload_16_64, or_is_add, ATOMIC_LOAD16_U_I64>;
// No 32->64 patterns, just use i32.atomic.load and i64.extend_s/i64
def : LoadPatGlobalAddr<i32, zext_aload_8_32, ATOMIC_LOAD8_U_I32>;
def : LoadPatGlobalAddr<i32, zext_aload_16_32, ATOMIC_LOAD16_U_I32>;
def : LoadPatGlobalAddr<i64, zext_aload_8_64, ATOMIC_LOAD8_U_I64>;
def : LoadPatGlobalAddr<i64, zext_aload_16_64, ATOMIC_LOAD16_U_I64>;
def : LoadPatGlobalAddr<i64, zext_aload_32_64, ATOMIC_LOAD32_U_I64>;
def : LoadPatGlobalAddr<i32, atomic_load_8, ATOMIC_LOAD8_U_I32>;
def : LoadPatGlobalAddr<i32, atomic_load_16, ATOMIC_LOAD16_U_I32>;
def : LoadPatGlobalAddr<i64, sext_aload_8_64, ATOMIC_LOAD8_U_I64>;
def : LoadPatGlobalAddr<i64, sext_aload_16_64, ATOMIC_LOAD16_U_I64>;
// Extending loads with just a constant offset
def : LoadPatOffsetOnly<i32, zext_aload_8_32, ATOMIC_LOAD8_U_I32>;
def : LoadPatOffsetOnly<i32, zext_aload_16_32, ATOMIC_LOAD16_U_I32>;
@ -326,13 +300,6 @@ def : AStorePatImmOff<i64, atomic_store_64, regPlusImm, ATOMIC_STORE_I64>;
def : AStorePatImmOff<i32, atomic_store_32, or_is_add, ATOMIC_STORE_I32>;
def : AStorePatImmOff<i64, atomic_store_64, or_is_add, ATOMIC_STORE_I64>;
class AStorePatGlobalAddr<ValueType ty, PatFrag kind, NI inst> :
Pat<(kind (regPlusGA I32:$addr, (WebAssemblywrapper tglobaladdr:$off)),
ty:$val),
(inst 0, tglobaladdr:$off, I32:$addr, ty:$val)>;
def : AStorePatGlobalAddr<i32, atomic_store_32, ATOMIC_STORE_I32>;
def : AStorePatGlobalAddr<i64, atomic_store_64, ATOMIC_STORE_I64>;
// Select stores with just a constant offset.
class AStorePatOffsetOnly<ValueType ty, PatFrag kind, NI inst> :
Pat<(kind imm:$off, ty:$val), (inst 0, imm:$off, (CONST_I32 0), ty:$val)>;
@ -387,12 +354,6 @@ def : AStorePatImmOff<i64, trunc_astore_8_64, or_is_add, ATOMIC_STORE8_I64>;
def : AStorePatImmOff<i64, trunc_astore_16_64, or_is_add, ATOMIC_STORE16_I64>;
def : AStorePatImmOff<i64, trunc_astore_32_64, or_is_add, ATOMIC_STORE32_I64>;
def : AStorePatGlobalAddr<i32, atomic_store_8, ATOMIC_STORE8_I32>;
def : AStorePatGlobalAddr<i32, atomic_store_16, ATOMIC_STORE16_I32>;
def : AStorePatGlobalAddr<i64, trunc_astore_8_64, ATOMIC_STORE8_I64>;
def : AStorePatGlobalAddr<i64, trunc_astore_16_64, ATOMIC_STORE16_I64>;
def : AStorePatGlobalAddr<i64, trunc_astore_32_64, ATOMIC_STORE32_I64>;
// Truncating stores with just a constant offset
def : AStorePatOffsetOnly<i32, atomic_store_8, ATOMIC_STORE8_I32>;
def : AStorePatOffsetOnly<i32, atomic_store_16, ATOMIC_STORE16_I32>;
@ -513,11 +474,6 @@ class BinRMWPatImmOff<ValueType ty, PatFrag kind, PatFrag operand, NI inst> :
Pat<(ty (kind (operand I32:$addr, imm:$off), ty:$val)),
(inst 0, imm:$off, I32:$addr, ty:$val)>;
class BinRMWPatGlobalAddr<ValueType ty, PatFrag kind, NI inst> :
Pat<(ty (kind (regPlusGA I32:$addr, (WebAssemblywrapper tglobaladdr:$off)),
ty:$val)),
(inst 0, tglobaladdr:$off, I32:$addr, ty:$val)>;
// Select binary RMWs with just a constant offset.
class BinRMWPatOffsetOnly<ValueType ty, PatFrag kind, NI inst> :
Pat<(ty (kind imm:$off, ty:$val)),
@ -538,9 +494,6 @@ multiclass BinRMWPattern<PatFrag rmw_32, PatFrag rmw_64, NI inst_32,
def : BinRMWPatImmOff<i32, rmw_32, or_is_add, inst_32>;
def : BinRMWPatImmOff<i64, rmw_64, or_is_add, inst_64>;
def : BinRMWPatGlobalAddr<i32, rmw_32, inst_32>;
def : BinRMWPatGlobalAddr<i64, rmw_64, inst_64>;
def : BinRMWPatOffsetOnly<i32, rmw_32, inst_32>;
def : BinRMWPatOffsetOnly<i64, rmw_64, inst_64>;
@ -635,17 +588,6 @@ multiclass BinRMWTruncExtPattern<
def : BinRMWPatImmOff<i64, sext_bin_rmw_8_64<rmw_8>, or_is_add, inst8_64>;
def : BinRMWPatImmOff<i64, sext_bin_rmw_16_64<rmw_16>, or_is_add, inst16_64>;
def : BinRMWPatGlobalAddr<i32, zext_bin_rmw_8_32<rmw_8>, inst8_32>;
def : BinRMWPatGlobalAddr<i32, zext_bin_rmw_16_32<rmw_16>, inst16_32>;
def : BinRMWPatGlobalAddr<i64, zext_bin_rmw_8_64<rmw_8>, inst8_64>;
def : BinRMWPatGlobalAddr<i64, zext_bin_rmw_16_64<rmw_16>, inst16_64>;
def : BinRMWPatGlobalAddr<i64, zext_bin_rmw_32_64<rmw_32>, inst32_64>;
def : BinRMWPatGlobalAddr<i32, sext_bin_rmw_8_32<rmw_8>, inst8_32>;
def : BinRMWPatGlobalAddr<i32, sext_bin_rmw_16_32<rmw_16>, inst16_32>;
def : BinRMWPatGlobalAddr<i64, sext_bin_rmw_8_64<rmw_8>, inst8_64>;
def : BinRMWPatGlobalAddr<i64, sext_bin_rmw_16_64<rmw_16>, inst16_64>;
// Truncating-extending binary RMWs with just a constant offset
def : BinRMWPatOffsetOnly<i32, zext_bin_rmw_8_32<rmw_8>, inst8_32>;
def : BinRMWPatOffsetOnly<i32, zext_bin_rmw_16_32<rmw_16>, inst16_32>;
@ -745,11 +687,6 @@ class TerRMWPatImmOff<ValueType ty, PatFrag kind, PatFrag operand, NI inst> :
Pat<(ty (kind (operand I32:$addr, imm:$off), ty:$exp, ty:$new)),
(inst 0, imm:$off, I32:$addr, ty:$exp, ty:$new)>;
class TerRMWPatGlobalAddr<ValueType ty, PatFrag kind, NI inst> :
Pat<(ty (kind (regPlusGA I32:$addr, (WebAssemblywrapper tglobaladdr:$off)),
ty:$exp, ty:$new)),
(inst 0, tglobaladdr:$off, I32:$addr, ty:$exp, ty:$new)>;
// Select ternary RMWs with just a constant offset.
class TerRMWPatOffsetOnly<ValueType ty, PatFrag kind, NI inst> :
Pat<(ty (kind imm:$off, ty:$exp, ty:$new)),
@ -770,9 +707,6 @@ multiclass TerRMWPattern<PatFrag rmw_32, PatFrag rmw_64, NI inst_32,
def : TerRMWPatImmOff<i32, rmw_32, or_is_add, inst_32>;
def : TerRMWPatImmOff<i64, rmw_64, or_is_add, inst_64>;
def : TerRMWPatGlobalAddr<i32, rmw_32, inst_32>;
def : TerRMWPatGlobalAddr<i64, rmw_64, inst_64>;
def : TerRMWPatOffsetOnly<i32, rmw_32, inst_32>;
def : TerRMWPatOffsetOnly<i64, rmw_64, inst_64>;
@ -859,17 +793,6 @@ multiclass TerRMWTruncExtPattern<
def : TerRMWPatImmOff<i64, sext_ter_rmw_8_64<rmw_8>, or_is_add, inst8_64>;
def : TerRMWPatImmOff<i64, sext_ter_rmw_16_64<rmw_16>, or_is_add, inst16_64>;
def : TerRMWPatGlobalAddr<i32, zext_ter_rmw_8_32<rmw_8>, inst8_32>;
def : TerRMWPatGlobalAddr<i32, zext_ter_rmw_16_32<rmw_16>, inst16_32>;
def : TerRMWPatGlobalAddr<i64, zext_ter_rmw_8_64<rmw_8>, inst8_64>;
def : TerRMWPatGlobalAddr<i64, zext_ter_rmw_16_64<rmw_16>, inst16_64>;
def : TerRMWPatGlobalAddr<i64, zext_ter_rmw_32_64<rmw_32>, inst32_64>;
def : TerRMWPatGlobalAddr<i32, sext_ter_rmw_8_32<rmw_8>, inst8_32>;
def : TerRMWPatGlobalAddr<i32, sext_ter_rmw_16_32<rmw_16>, inst16_32>;
def : TerRMWPatGlobalAddr<i64, sext_ter_rmw_8_64<rmw_8>, inst8_64>;
def : TerRMWPatGlobalAddr<i64, sext_ter_rmw_16_64<rmw_16>, inst16_64>;
// Truncating-extending ternary RMWs with just a constant offset
def : TerRMWPatOffsetOnly<i32, zext_ter_rmw_8_32<rmw_8>, inst8_32>;
def : TerRMWPatOffsetOnly<i32, zext_ter_rmw_16_32<rmw_16>, inst16_32>;

51
lib/Target/WebAssembly/WebAssemblyInstrMemory.td
View File

@ -37,16 +37,6 @@ def or_is_add : PatFrag<(ops node:$lhs, node:$rhs), (or node:$lhs, node:$rhs),[{
return (~Known0.Zero & ~Known1.Zero) == 0;
}]>;
// GlobalAddresses are conceptually unsigned values, so we can also fold them
// into immediate values as long as the add is 'nuw'.
// TODO: We'd like to also match GA offsets but there are cases where the
// register can have a negative value. Find out what more we can do.
def regPlusGA : PatFrag<(ops node:$addr, node:$off),
(add node:$addr, node:$off),
[{
return N->getFlags().hasNoUnsignedWrap();
}]>;
// We don't need a regPlusES because external symbols never have constant
// offsets folded into them, so we can just use add.
@ -93,15 +83,6 @@ def : LoadPatImmOff<i64, load, or_is_add, LOAD_I64>;
def : LoadPatImmOff<f32, load, or_is_add, LOAD_F32>;
def : LoadPatImmOff<f64, load, or_is_add, LOAD_F64>;
class LoadPatGlobalAddr<ValueType ty, PatFrag kind, NI inst> :
Pat<(ty (kind (regPlusGA I32:$addr, (WebAssemblywrapper tglobaladdr:$off)))),
(inst 0, tglobaladdr:$off, I32:$addr)>, Requires<[IsNotPIC]>;
def : LoadPatGlobalAddr<i32, load, LOAD_I32>;
def : LoadPatGlobalAddr<i64, load, LOAD_I64>;
def : LoadPatGlobalAddr<f32, load, LOAD_F32>;
def : LoadPatGlobalAddr<f64, load, LOAD_F64>;
// Select loads with just a constant offset.
class LoadPatOffsetOnly<ValueType ty, PatFrag kind, NI inst> :
Pat<(ty (kind imm:$off)), (inst 0, imm:$off, (CONST_I32 0))>;
@ -167,18 +148,6 @@ def : LoadPatImmOff<i64, zextloadi16, or_is_add, LOAD16_U_I64>;
def : LoadPatImmOff<i64, sextloadi32, or_is_add, LOAD32_S_I64>;
def : LoadPatImmOff<i64, zextloadi32, or_is_add, LOAD32_U_I64>;
def : LoadPatGlobalAddr<i32, sextloadi8, LOAD8_S_I32>;
def : LoadPatGlobalAddr<i32, zextloadi8, LOAD8_U_I32>;
def : LoadPatGlobalAddr<i32, sextloadi16, LOAD16_S_I32>;
def : LoadPatGlobalAddr<i32, zextloadi8, LOAD16_U_I32>;
def : LoadPatGlobalAddr<i64, sextloadi8, LOAD8_S_I64>;
def : LoadPatGlobalAddr<i64, zextloadi8, LOAD8_U_I64>;
def : LoadPatGlobalAddr<i64, sextloadi16, LOAD16_S_I64>;
def : LoadPatGlobalAddr<i64, zextloadi16, LOAD16_U_I64>;
def : LoadPatGlobalAddr<i64, sextloadi32, LOAD32_S_I64>;
def : LoadPatGlobalAddr<i64, zextloadi32, LOAD32_U_I64>;
// Select extending loads with just a constant offset.
def : LoadPatOffsetOnly<i32, sextloadi8, LOAD8_S_I32>;
def : LoadPatOffsetOnly<i32, zextloadi8, LOAD8_U_I32>;
@ -224,11 +193,6 @@ def : LoadPatImmOff<i32, extloadi16, or_is_add, LOAD16_U_I32>;
def : LoadPatImmOff<i64, extloadi8, or_is_add, LOAD8_U_I64>;
def : LoadPatImmOff<i64, extloadi16, or_is_add, LOAD16_U_I64>;
def : LoadPatImmOff<i64, extloadi32, or_is_add, LOAD32_U_I64>;
def : LoadPatGlobalAddr<i32, extloadi8, LOAD8_U_I32>;
def : LoadPatGlobalAddr<i32, extloadi16, LOAD16_U_I32>;
def : LoadPatGlobalAddr<i64, extloadi8, LOAD8_U_I64>;
def : LoadPatGlobalAddr<i64, extloadi16, LOAD16_U_I64>;
def : LoadPatGlobalAddr<i64, extloadi32, LOAD32_U_I64>;
// Select "don't care" extending loads with just a constant offset.
def : LoadPatOffsetOnly<i32, extloadi8, LOAD8_U_I32>;
@ -282,15 +246,6 @@ def : StorePatImmOff<i64, store, or_is_add, STORE_I64>;
def : StorePatImmOff<f32, store, or_is_add, STORE_F32>;
def : StorePatImmOff<f64, store, or_is_add, STORE_F64>;
class StorePatGlobalAddr<ValueType ty, PatFrag kind, NI inst> :
Pat<(kind ty:$val,
(regPlusGA I32:$addr, (WebAssemblywrapper tglobaladdr:$off))),
(inst 0, tglobaladdr:$off, I32:$addr, ty:$val)>, Requires<[IsNotPIC]>;
def : StorePatGlobalAddr<i32, store, STORE_I32>;
def : StorePatGlobalAddr<i64, store, STORE_I64>;
def : StorePatGlobalAddr<f32, store, STORE_F32>;
def : StorePatGlobalAddr<f64, store, STORE_F64>;
// Select stores with just a constant offset.
class StorePatOffsetOnly<ValueType ty, PatFrag kind, NI inst> :
Pat<(kind ty:$val, imm:$off), (inst 0, imm:$off, (CONST_I32 0), ty:$val)>;
@ -333,12 +288,6 @@ def : StorePatImmOff<i64, truncstorei8, or_is_add, STORE8_I64>;
def : StorePatImmOff<i64, truncstorei16, or_is_add, STORE16_I64>;
def : StorePatImmOff<i64, truncstorei32, or_is_add, STORE32_I64>;
def : StorePatGlobalAddr<i32, truncstorei8, STORE8_I32>;
def : StorePatGlobalAddr<i32, truncstorei16, STORE16_I32>;
def : StorePatGlobalAddr<i64, truncstorei8, STORE8_I64>;
def : StorePatGlobalAddr<i64, truncstorei16, STORE16_I64>;
def : StorePatGlobalAddr<i64, truncstorei32, STORE32_I64>;
// Select truncating stores with just a constant offset.
def : StorePatOffsetOnly<i32, truncstorei8, STORE8_I32>;
def : StorePatOffsetOnly<i32, truncstorei16, STORE16_I32>;

2
lib/Target/WebAssembly/WebAssemblyInstrSIMD.td
View File

@ -56,7 +56,6 @@ defm "" : SIMDLoad<vec_t>;
def : LoadPatNoOffset<vec_t, load, !cast<NI>("LOAD_"#vec_t)>;
def : LoadPatImmOff<vec_t, load, regPlusImm, !cast<NI>("LOAD_"#vec_t)>;
def : LoadPatImmOff<vec_t, load, or_is_add, !cast<NI>("LOAD_"#vec_t)>;
def : LoadPatGlobalAddr<vec_t, load, !cast<NI>("LOAD_"#vec_t)>;
def : LoadPatOffsetOnly<vec_t, load, !cast<NI>("LOAD_"#vec_t)>;
def : LoadPatGlobalAddrOffOnly<vec_t, load, !cast<NI>("LOAD_"#vec_t)>;
}
@ -78,7 +77,6 @@ defm "" : SIMDStore<vec_t>;
def : StorePatNoOffset<vec_t, store, !cast<NI>("STORE_"#vec_t)>;
def : StorePatImmOff<vec_t, store, regPlusImm, !cast<NI>("STORE_"#vec_t)>;
def : StorePatImmOff<vec_t, store, or_is_add, !cast<NI>("STORE_"#vec_t)>;
def : StorePatGlobalAddr<vec_t, store, !cast<NI>("STORE_"#vec_t)>;
def : StorePatOffsetOnly<vec_t, store, !cast<NI>("STORE_"#vec_t)>;
def : StorePatGlobalAddrOffOnly<vec_t, store, !cast<NI>("STORE_"#vec_t)>;
}