fluencelabs/wasmer
1
0
Fork 0
mirror of https://github.com/fluencelabs/wasmer synced 2024-12-13 14:25:32 +00:00
Code Issues Projects Releases Wiki Activity

Use temp_gprs instead of hard-coding RAX/RDX.

Browse Source
This commit is contained in:
Nick Lewycky 2019-10-14 13:53:30 -07:00
parent 5cee23455d
commit b886a41a85
1 changed files with 19 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
lib/singlepass-backend/src/codegen_x64.rs
View File

@ -2832,7 +2832,8 @@ impl FunctionCodeGenerator<CodegenError> for X64FunctionCode {
let tmp1 = self.machine.acquire_temp_xmm().unwrap();
let tmp2 = self.machine.acquire_temp_xmm().unwrap();
let tmpg = self.machine.acquire_temp_gpr().unwrap();
let tmpg1 = self.machine.acquire_temp_gpr().unwrap();
let tmpg2 = self.machine.acquire_temp_gpr().unwrap();
let src1 = match src1 {
Location::XMM(x) => x,
@ -2841,13 +2842,13 @@ impl FunctionCodeGenerator<CodegenError> for X64FunctionCode {
tmp1
}
Location::Imm32(_) => {
a.emit_mov(Size::S32, src1, Location::GPR(tmpg));
a.emit_mov(Size::S32, Location::GPR(tmpg), Location::XMM(tmp1));
a.emit_mov(Size::S32, src1, Location::GPR(tmpg1));
a.emit_mov(Size::S32, Location::GPR(tmpg1), Location::XMM(tmp1));
tmp1
}
Location::Imm64(_) => {
a.emit_mov(Size::S64, src1, Location::GPR(tmpg));
a.emit_mov(Size::S64, Location::GPR(tmpg), Location::XMM(tmp1));
a.emit_mov(Size::S64, src1, Location::GPR(tmpg1));
a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp1));
tmp1
}
_ => unreachable!(),
@ -2859,13 +2860,13 @@ impl FunctionCodeGenerator<CodegenError> for X64FunctionCode {
tmp2
}
Location::Imm32(_) => {
a.emit_mov(Size::S32, src2, Location::GPR(tmpg));
a.emit_mov(Size::S32, Location::GPR(tmpg), Location::XMM(tmp2));
a.emit_mov(Size::S32, src2, Location::GPR(tmpg1));
a.emit_mov(Size::S32, Location::GPR(tmpg1), Location::XMM(tmp2));
tmp2
}
Location::Imm64(_) => {
a.emit_mov(Size::S64, src2, Location::GPR(tmpg));
a.emit_mov(Size::S64, Location::GPR(tmpg), Location::XMM(tmp2));
a.emit_mov(Size::S64, src2, Location::GPR(tmpg1));
a.emit_mov(Size::S64, Location::GPR(tmpg1), Location::XMM(tmp2));
tmp2
}
_ => unreachable!(),
@ -2877,9 +2878,9 @@ impl FunctionCodeGenerator<CodegenError> for X64FunctionCode {
static NEG_ZERO: u128 = 0x8000_0000;
static CANONICAL_NAN: u128 = 0x7FC0_0000;
a.emit_mov(Size::S32, Location::XMM(src1), Location::GPR(GPR::RAX));
a.emit_mov(Size::S32, Location::XMM(src2), Location::GPR(GPR::RDX));
a.emit_cmp(Size::S32, Location::GPR(GPR::RDX), Location::GPR(GPR::RAX));
a.emit_mov(Size::S32, Location::XMM(src1), Location::GPR(tmpg1));
a.emit_mov(Size::S32, Location::XMM(src2), Location::GPR(tmpg2));
a.emit_cmp(Size::S32, Location::GPR(tmpg2), Location::GPR(tmpg1));
a.emit_vminss(src1, XMMOrMemory::XMM(src2), tmp_xmm1);
let label1 = a.get_label();
let label2 = a.get_label();
@ -2891,11 +2892,11 @@ impl FunctionCodeGenerator<CodegenError> for X64FunctionCode {
a.emit_mov(
Size::S64,
Location::Imm64((&NEG_ZERO as *const u128) as u64),
Location::GPR(tmpg),
Location::GPR(tmpg1),
);
a.emit_mov(
Size::S64,
Location::Memory(tmpg, 0),
Location::Memory(tmpg1, 0),
Location::XMM(tmp_xmm2),
);
a.emit_label(label2);
@ -2906,9 +2907,9 @@ impl FunctionCodeGenerator<CodegenError> for X64FunctionCode {
a.emit_mov(
Size::S64,
Location::Imm64((&CANONICAL_NAN as *const u128) as u64),
Location::GPR(tmpg),
Location::GPR(tmpg1),
);
a.emit_mov(Size::S64, Location::Memory(tmpg, 0), Location::XMM(src2));
a.emit_mov(Size::S64, Location::Memory(tmpg1, 0), Location::XMM(src2));
a.emit_vblendvps(src1, XMMOrMemory::XMM(src2), tmp_xmm1, src1);
match ret {
Location::XMM(x) => {
@ -2920,7 +2921,8 @@ impl FunctionCodeGenerator<CodegenError> for X64FunctionCode {
_ => unreachable!(),
}
self.machine.release_temp_gpr(tmpg);
self.machine.release_temp_gpr(tmpg2);
self.machine.release_temp_gpr(tmpg1);
self.machine.release_temp_xmm(tmp2);
self.machine.release_temp_xmm(tmp1);
}