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Integer division

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This commit is contained in:
Jef
2019-02-28 18:09:22 +01:00
parent 677d54e46d
commit 71662af0fa
2 changed files with 276 additions and 54 deletions
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12
src/function_body.rs
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@@ -36,7 +36,7 @@ where
{
let ty = session.module_context.func_type(func_idx);
if true {
if false {
let mut microwasm = vec![];
let microwasm_conv = MicrowasmConv::new(
@@ -137,7 +137,7 @@ where
let block = entry.get_mut();
// TODO: Is it possible with arbitrary CFGs that a block will have _only_ backwards callers?
// Certainly for Wasm that is currently impossible.
// Certainly for Microwasm generated from Wasm that is currently impossible.
if block.actual_num_callers == 0 {
loop {
let done = match body.peek() {
@@ -245,8 +245,10 @@ where
}
}
Operator::BrIf { then, else_ } => {
// TODO: We should add the block to the hashmap if we don't have it already
let (then_block, else_block) = blocks.pair_mut(&then, &else_);
// TODO: If actual_num_callers == num_callers then we can remove this block from the hashmap.
// This frees memory and acts as a kind of verification that `num_callers` is set
// correctly. It doesn't help for loops and block ends generated from Wasm.
then_block.actual_num_callers += 1;
else_block.actual_num_callers += 1;
@@ -379,6 +381,10 @@ where
Operator::Or(Size::_32) => ctx.i32_or(),
Operator::Xor(Size::_32) => ctx.i32_xor(),
Operator::Mul(I32) => ctx.i32_mul(),
Operator::Div(SU32) => ctx.i32_div_u(),
Operator::Div(SI32) => ctx.i32_div_s(),
Operator::Rem(sint::I32) => ctx.i32_rem_u(),
Operator::Rem(sint::U32) => ctx.i32_rem_s(),
Operator::Shl(Size::_32) => ctx.i32_shl(),
Operator::Shr(sint::I32) => ctx.i32_shr_s(),
Operator::Shr(sint::U32) => ctx.i32_shr_u(),