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Add TLS support for ELF and MachO (#1174)

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* Add TLS support
* Add binemit and legalize tests
* Spill all caller-saved registers when necessary
This commit is contained in:
bjorn3
2020-02-26 02:50:04 +01:00
committed by GitHub
parent 0a11736fbf
commit 0a1bb3ba6c
27 changed files with 354 additions and 19 deletions
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6
cranelift/codegen/src/regalloc/spilling.rs
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@@ -267,7 +267,11 @@ impl<'a> Context<'a> {
// If inst is a call, spill all register values that are live across the call.
// This means that we don't currently take advantage of callee-saved registers.
// TODO: Be more sophisticated.
if call_sig.is_some() {
let opcode = self.cur.func.dfg[inst].opcode();
if call_sig.is_some()
|| opcode == crate::ir::Opcode::X86ElfTlsGetAddr
|| opcode == crate::ir::Opcode::X86MachoTlsGetAddr
{
for lv in throughs {
if lv.affinity.is_reg() && !self.spills.contains(&lv.value) {
self.spill_reg(lv.value);