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Add ctz and popcnt to WasmDialect

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This commit is contained in:
Alex Beregszaszi 2019-12-11 13:23:43 +00:00
parent c90d3a3558
commit 87557896ed
2 changed files with 21 additions and 2 deletions
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3
Changelog.md
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@ -1,5 +1,8 @@
### 0.6.12 (unreleased)
Language Features:
* Wasm backend: Add ``i32.ctz``, ``i64.ctz``, ``i32.popcnt``, and ``i64.popcnt``.
Compiler Features:
* Code Generator: Evaluate ``keccak256`` of string literals at compile-time.

20
libyul/backends/wasm/WasmDialect.cpp
View File

@ -38,13 +38,18 @@ WasmDialect::WasmDialect()
"add",
"sub",
"mul",
// TODO: div_s
"div_u",
// TODO: rem_s
"rem_u",
"and",
"or",
"xor",
"shl",
// TODO: shr_s
"shr_u",
// TODO: rotl
// TODO: rotr
})
addFunction(t.str() + "." + name, {t, t}, {t});
@ -52,9 +57,13 @@ WasmDialect::WasmDialect()
for (auto const& name: {
"eq",
"ne",
// TODO: lt_s
"lt_u",
// TODO: gt_s
"gt_u",
// TODO: le_s
"le_u",
// TODO: ge_s
"ge_u"
})
addFunction(t.str() + "." + name, {t, t}, {i32});
@ -62,8 +71,13 @@ WasmDialect::WasmDialect()
addFunction("i32.eqz", {i32}, {i32});
addFunction("i64.eqz", {i64}, {i32});
addFunction("i32.clz", {i32}, {i32});
addFunction("i64.clz", {i64}, {i64});
for (auto t: types)
for (auto const& name: {
"clz",
"ctz",
"popcnt",
})
addFunction(t.str() + "." + name, {t}, {t});
addFunction("i32.wrap_i64", {i64}, {i32});
@ -73,6 +87,7 @@ WasmDialect::WasmDialect()
m_functions["i32.store"_yulstring].sideEffects.invalidatesStorage = false;
addFunction("i64.store", {i32, i64}, {}, false);
m_functions["i64.store"_yulstring].sideEffects.invalidatesStorage = false;
// TODO: add i32.store16, i64.store8, i64.store16, i64.store32
addFunction("i32.store8", {i32, i32}, {}, false);
m_functions["i32.store8"_yulstring].sideEffects.invalidatesStorage = false;
@ -89,6 +104,7 @@ WasmDialect::WasmDialect()
m_functions["i64.load"_yulstring].sideEffects.invalidatesMemory = false;
m_functions["i64.load"_yulstring].sideEffects.sideEffectFree = true;
m_functions["i64.load"_yulstring].sideEffects.sideEffectFreeIfNoMSize = true;
// TODO: add i32.load8, i32.load16, i64.load8, i64.load16, i64.load32
// Drop is actually overloaded for all types, but Yul does not support that.
// Because of that, we introduce "i32.drop" and "i64.drop".