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x64: Lower tlsvalue, sqmul_round_sat, and uunarrow in ISLE (#4793)

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Lower tlsvalue, sqmul_round_sat, and uunarrow in ISLE.
This commit is contained in:
Trevor Elliott
2022-08-26 16:33:48 -07:00
committed by GitHub
parent 8e8dfdf5f9
commit 25d960f9c4
11 changed files with 287 additions and 205 deletions
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15
cranelift/codegen/src/isa/x64/inst/emit.rs
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@@ -2915,7 +2915,10 @@ pub(crate) fn emit(
}
}
Inst::ElfTlsGetAddr { ref symbol } => {
Inst::ElfTlsGetAddr { ref symbol, dst } => {
let dst = allocs.next(dst.to_reg().to_reg());
debug_assert_eq!(dst, regs::rax());
// N.B.: Must be exactly this byte sequence; the linker requires it,
// because it must know how to rewrite the bytes.
@@ -2941,7 +2944,10 @@ pub(crate) fn emit(
sink.put4(0); // offset
}
Inst::MachOTlsGetAddr { ref symbol } => {
Inst::MachOTlsGetAddr { ref symbol, dst } => {
let dst = allocs.next(dst.to_reg().to_reg());
debug_assert_eq!(dst, regs::rax());
// movq gv@tlv(%rip), %rdi
sink.put1(0x48); // REX.w
sink.put1(0x8b); // MOV
@@ -2954,7 +2960,10 @@ pub(crate) fn emit(
sink.put1(0x17);
}
Inst::CoffTlsGetAddr { ref symbol } => {
Inst::CoffTlsGetAddr { ref symbol, dst } => {
let dst = allocs.next(dst.to_reg().to_reg());
debug_assert_eq!(dst, regs::rax());
// See: https://gcc.godbolt.org/z/M8or9x6ss
// And: https://github.com/bjorn3/rustc_codegen_cranelift/issues/388#issuecomment-532930282