diff --git a/compiler/rustc_ast_lowering/src/asm.rs b/compiler/rustc_ast_lowering/src/asm.rs index d44faad017ee5..afcbae9c51b4d 100644 --- a/compiler/rustc_ast_lowering/src/asm.rs +++ b/compiler/rustc_ast_lowering/src/asm.rs @@ -51,6 +51,8 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { | asm::InlineAsmArch::LoongArch32 | asm::InlineAsmArch::LoongArch64 | asm::InlineAsmArch::S390x + | asm::InlineAsmArch::PowerPC + | asm::InlineAsmArch::PowerPC64 ); if !is_stable && !self.tcx.features().asm_experimental_arch() { feature_err( diff --git a/src/doc/unstable-book/src/language-features/asm-experimental-arch.md b/src/doc/unstable-book/src/language-features/asm-experimental-arch.md index 94de948a480eb..23ac46b72ea70 100644 --- a/src/doc/unstable-book/src/language-features/asm-experimental-arch.md +++ b/src/doc/unstable-book/src/language-features/asm-experimental-arch.md @@ -8,7 +8,6 @@ The tracking issue for this feature is: [#93335] This feature tracks `asm!` and `global_asm!` support for the following architectures: - NVPTX -- PowerPC - Hexagon - MIPS32r2 and MIPS64r2 - wasm32 @@ -31,15 +30,6 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | NVPTX | `reg64` | None\* | `l` | | Hexagon | `reg` | `r[0-28]` | `r` | | Hexagon | `preg` | `p[0-3]` | Only clobbers | -| PowerPC | `reg` | `r0`, `r[3-12]`, `r[14-28]` | `r` | -| PowerPC | `reg_nonzero` | `r[3-12]`, `r[14-28]` | `b` | -| PowerPC | `freg` | `f[0-31]` | `f` | -| PowerPC | `vreg` | `v[0-31]` | `v` | -| PowerPC | `vsreg | `vs[0-63]` | `wa` | -| PowerPC | `cr` | `cr[0-7]`, `cr` | Only clobbers | -| PowerPC | `ctr` | `ctr` | Only clobbers | -| PowerPC | `lr` | `lr` | Only clobbers | -| PowerPC | `xer` | `xer` | Only clobbers | | wasm32 | `local` | None\* | `r` | | BPF | `reg` | `r[0-10]` | `r` | | BPF | `wreg` | `w[0-10]` | `w` | @@ -75,16 +65,6 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | NVPTX | `reg64` | None | `i8`, `i16`, `i32`, `f32`, `i64`, `f64` | | Hexagon | `reg` | None | `i8`, `i16`, `i32`, `f32` | | Hexagon | `preg` | N/A | Only clobbers | -| PowerPC | `reg` | None | `i8`, `i16`, `i32`, `i64` (powerpc64 only) | -| PowerPC | `reg_nonzero` | None | `i8`, `i16`, `i32`, `i64` (powerpc64 only) | -| PowerPC | `freg` | None | `f32`, `f64` | -| PowerPC | `vreg` | `altivec` | `i8x16`, `i16x8`, `i32x4`, `f32x4` | -| PowerPC | `vreg` | `vsx` | `f32`, `f64`, `i64x2`, `f64x2` | -| PowerPC | `vsreg` | `vsx` | The union of vsx and altivec vreg types | -| PowerPC | `cr` | N/A | Only clobbers | -| PowerPC | `ctr` | N/A | Only clobbers | -| PowerPC | `lr` | N/A | Only clobbers | -| PowerPC | `xer` | N/A | Only clobbers | | wasm32 | `local` | None | `i8` `i16` `i32` `i64` `f32` `f64` | | BPF | `reg` | None | `i8` `i16` `i32` `i64` | | BPF | `wreg` | `alu32` | `i8` `i16` `i32` | @@ -105,10 +85,6 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | Hexagon | `r29` | `sp` | | Hexagon | `r30` | `fr` | | Hexagon | `r31` | `lr` | -| PowerPC | `r1` | `sp` | -| PowerPC | `r31` | `fp` | -| PowerPC | `r[0-31]` | `[0-31]` | -| PowerPC | `f[0-31]` | `fr[0-31]`| | BPF | `r[0-10]` | `w[0-10]` | | AVR | `XH` | `r27` | | AVR | `XL` | `r26` | @@ -147,16 +123,14 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | Architecture | Unsupported register | Reason | | ------------ | --------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | All | `sp`, `r14`/`o6` (SPARC) | The stack pointer must be restored to its original value at the end of an asm code block. | -| All | `fr` (Hexagon), `fp` (PowerPC), `$fp` (MIPS), `Y` (AVR), `r4` (MSP430), `a6` (M68k), `r30`/`i6` (SPARC) | The frame pointer cannot be used as an input or output. | -| All | `r19` (Hexagon), `r29` (PowerPC), `r30` (PowerPC) | These are used internally by LLVM as "base pointer" for functions with complex stack frames. | +| All | `fr` (Hexagon) `$fp` (MIPS), `Y` (AVR), `r4` (MSP430), `a6` (M68k), `r30`/`i6` (SPARC) | The frame pointer cannot be used as an input or output. | +| All | `r19` (Hexagon) | These are used internally by LLVM as "base pointer" for functions with complex stack frames. | | MIPS | `$0` or `$zero` | This is a constant zero register which can't be modified. | | MIPS | `$1` or `$at` | Reserved for assembler. | | MIPS | `$26`/`$k0`, `$27`/`$k1` | OS-reserved registers. | | MIPS | `$28`/`$gp` | Global pointer cannot be used as inputs or outputs. | | MIPS | `$ra` | Return address cannot be used as inputs or outputs. | | Hexagon | `lr` | This is the link register which cannot be used as an input or output. | -| PowerPC | `r2`, `r13` | These are system reserved registers. | -| PowerPC | `vrsave` | The vrsave register cannot be used as an input or output. | | AVR | `r0`, `r1`, `r1r0` | Due to an issue in LLVM, the `r0` and `r1` registers cannot be used as inputs or outputs. If modified, they must be restored to their original values before the end of the block. | |MSP430 | `r0`, `r2`, `r3` | These are the program counter, status register, and constant generator respectively. Neither the status register nor constant generator can be written to. | | M68k | `a4`, `a5` | Used internally by LLVM for the base pointer and global base pointer. | @@ -183,11 +157,6 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | NVPTX | `reg32` | None | `r0` | None | | NVPTX | `reg64` | None | `rd0` | None | | Hexagon | `reg` | None | `r0` | None | -| PowerPC | `reg` | None | `0` | None | -| PowerPC | `reg_nonzero` | None | `3` | None | -| PowerPC | `freg` | None | `0` | None | -| PowerPC | `vreg` | None | `0` | None | -| PowerPC | `vsreg` | None | `0` | None | | SPARC | `reg` | None | `%o0` | None | | CSKY | `reg` | None | `r0` | None | | CSKY | `freg` | None | `f0` | None |