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Stabilize ppc inline assembly #147996

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2 changes: 2 additions & 0 deletions compiler/rustc_ast_lowering/src/asm.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -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(
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35 changes: 2 additions & 33 deletions src/doc/unstable-book/src/language-features/asm-experimental-arch.md
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Expand Up @@ -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
Expand All @@ -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` |
Expand Down Expand Up @@ -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` |
Expand All @@ -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` |
Expand Down Expand Up @@ -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. |
Expand All @@ -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 |
Expand Down
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