diff options
Diffstat (limited to 'compiler/rustc_target/src/asm/s390x.rs')
-rw-r--r-- | compiler/rustc_target/src/asm/s390x.rs | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/asm/s390x.rs b/compiler/rustc_target/src/asm/s390x.rs new file mode 100644 index 000000000..0a50064f5 --- /dev/null +++ b/compiler/rustc_target/src/asm/s390x.rs @@ -0,0 +1,107 @@ +use super::{InlineAsmArch, InlineAsmType}; +use rustc_macros::HashStable_Generic; +use rustc_span::Symbol; +use std::fmt; + +def_reg_class! { + S390x S390xInlineAsmRegClass { + reg, + freg, + } +} + +impl S390xInlineAsmRegClass { + pub fn valid_modifiers(self, _arch: super::InlineAsmArch) -> &'static [char] { + &[] + } + + pub fn suggest_class(self, _arch: InlineAsmArch, _ty: InlineAsmType) -> Option<Self> { + None + } + + pub fn suggest_modifier( + self, + _arch: InlineAsmArch, + _ty: InlineAsmType, + ) -> Option<(char, &'static str)> { + None + } + + pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { + None + } + + pub fn supported_types( + self, + arch: InlineAsmArch, + ) -> &'static [(InlineAsmType, Option<Symbol>)] { + match (self, arch) { + (Self::reg, _) => types! { _: I8, I16, I32, I64; }, + (Self::freg, _) => types! { _: F32, F64; }, + } + } +} + +def_regs! { + S390x S390xInlineAsmReg S390xInlineAsmRegClass { + r0: reg = ["r0"], + r1: reg = ["r1"], + r2: reg = ["r2"], + r3: reg = ["r3"], + r4: reg = ["r4"], + r5: reg = ["r5"], + r6: reg = ["r6"], + r7: reg = ["r7"], + r8: reg = ["r8"], + r9: reg = ["r9"], + r10: reg = ["r10"], + r12: reg = ["r12"], + r13: reg = ["r13"], + r14: reg = ["r14"], + f0: freg = ["f0"], + f1: freg = ["f1"], + f2: freg = ["f2"], + f3: freg = ["f3"], + f4: freg = ["f4"], + f5: freg = ["f5"], + f6: freg = ["f6"], + f7: freg = ["f7"], + f8: freg = ["f8"], + f9: freg = ["f9"], + f10: freg = ["f10"], + f11: freg = ["f11"], + f12: freg = ["f12"], + f13: freg = ["f13"], + f14: freg = ["f14"], + f15: freg = ["f15"], + #error = ["r11"] => + "The frame pointer cannot be used as an operand for inline asm", + #error = ["r15"] => + "The stack pointer cannot be used as an operand for inline asm", + #error = [ + "c0", "c1", "c2", "c3", + "c4", "c5", "c6", "c7", + "c8", "c9", "c10", "c11", + "c12", "c13", "c14", "c15" + ] => + "control registers are reserved by the kernel and cannot be used as operands for inline asm", + #error = [ + "a0", "a1", "a2", "a3", + "a4", "a5", "a6", "a7", + "a8", "a9", "a10", "a11", + "a12", "a13", "a14", "a15" + ] => + "access registers are not supported and cannot be used as operands for inline asm", + } +} + +impl S390xInlineAsmReg { + pub fn emit( + self, + out: &mut dyn fmt::Write, + _arch: InlineAsmArch, + _modifier: Option<char>, + ) -> fmt::Result { + write!(out, "%{}", self.name()) + } +} |