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Correct this test and simplify.

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This commit is contained in:
Nick Lewycky 2019-09-24 10:54:23 -07:00
parent 07b5991080
commit be181f9119
1 changed files with 17 additions and 18 deletions
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3
lib/singlepass-backend/src/codegen_x64.rs
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@ -1512,9 +1512,9 @@ impl X64FunctionCode {
a.emit_add(Size::S64, Location::GPR(tmp_base), Location::GPR(tmp_bound)); a.emit_add(Size::S64, Location::GPR(tmp_base), Location::GPR(tmp_bound));
a.emit_mov(Size::S32, addr, Location::GPR(tmp_addr)); a.emit_mov(Size::S32, addr, Location::GPR(tmp_addr));
if offset != 0 && value_size != 0 {
// This branch is used for emitting "faster" code for the special case of (offset + value_size) not exceeding u32 range. // This branch is used for emitting "faster" code for the special case of (offset + value_size) not exceeding u32 range.
match (offset as u32).checked_add(value_size as u32) { match (offset as u32).checked_add(value_size as u32) {
Some(0) => {}
Some(x) => { Some(x) => {
a.emit_add(Size::S64, Location::Imm32(x), Location::GPR(tmp_addr)); a.emit_add(Size::S64, Location::Imm32(x), Location::GPR(tmp_addr));
} }
@ -1531,7 +1531,6 @@ impl X64FunctionCode {
); );
} }
} }
}
// Trap if the end address of the requested area is above that of the linear memory. // Trap if the end address of the requested area is above that of the linear memory.
a.emit_add(Size::S64, Location::GPR(tmp_base), Location::GPR(tmp_addr)); a.emit_add(Size::S64, Location::GPR(tmp_base), Location::GPR(tmp_addr));