diff options
| -rw-r--r-- | compiler/rustc_target/src/asm/arm.rs | 80 | ||||
| -rw-r--r-- | tests/ui/asm/arm-low-dreg.rs | 33 |
2 files changed, 73 insertions, 40 deletions
diff --git a/compiler/rustc_target/src/asm/arm.rs b/compiler/rustc_target/src/asm/arm.rs index 9d79faadd61..70fcaab1847 100644 --- a/compiler/rustc_target/src/asm/arm.rs +++ b/compiler/rustc_target/src/asm/arm.rs @@ -148,22 +148,22 @@ def_regs! { r11: reg = ["r11", "fp"] % frame_pointer_r11, r12: reg = ["r12", "ip"] % not_thumb1, r14: reg = ["r14", "lr"] % not_thumb1, - s0: sreg, sreg_low16 = ["s0"], - s1: sreg, sreg_low16 = ["s1"], - s2: sreg, sreg_low16 = ["s2"], - s3: sreg, sreg_low16 = ["s3"], - s4: sreg, sreg_low16 = ["s4"], - s5: sreg, sreg_low16 = ["s5"], - s6: sreg, sreg_low16 = ["s6"], - s7: sreg, sreg_low16 = ["s7"], - s8: sreg, sreg_low16 = ["s8"], - s9: sreg, sreg_low16 = ["s9"], - s10: sreg, sreg_low16 = ["s10"], - s11: sreg, sreg_low16 = ["s11"], - s12: sreg, sreg_low16 = ["s12"], - s13: sreg, sreg_low16 = ["s13"], - s14: sreg, sreg_low16 = ["s14"], - s15: sreg, sreg_low16 = ["s15"], + s0: sreg_low16, sreg = ["s0"], + s1: sreg_low16, sreg = ["s1"], + s2: sreg_low16, sreg = ["s2"], + s3: sreg_low16, sreg = ["s3"], + s4: sreg_low16, sreg = ["s4"], + s5: sreg_low16, sreg = ["s5"], + s6: sreg_low16, sreg = ["s6"], + s7: sreg_low16, sreg = ["s7"], + s8: sreg_low16, sreg = ["s8"], + s9: sreg_low16, sreg = ["s9"], + s10: sreg_low16, sreg = ["s10"], + s11: sreg_low16, sreg = ["s11"], + s12: sreg_low16, sreg = ["s12"], + s13: sreg_low16, sreg = ["s13"], + s14: sreg_low16, sreg = ["s14"], + s15: sreg_low16, sreg = ["s15"], s16: sreg = ["s16"], s17: sreg = ["s17"], s18: sreg = ["s18"], @@ -180,22 +180,22 @@ def_regs! { s29: sreg = ["s29"], s30: sreg = ["s30"], s31: sreg = ["s31"], - d0: dreg, dreg_low16, dreg_low8 = ["d0"], - d1: dreg, dreg_low16, dreg_low8 = ["d1"], - d2: dreg, dreg_low16, dreg_low8 = ["d2"], - d3: dreg, dreg_low16, dreg_low8 = ["d3"], - d4: dreg, dreg_low16, dreg_low8 = ["d4"], - d5: dreg, dreg_low16, dreg_low8 = ["d5"], - d6: dreg, dreg_low16, dreg_low8 = ["d6"], - d7: dreg, dreg_low16, dreg_low8 = ["d7"], - d8: dreg, dreg_low16 = ["d8"], - d9: dreg, dreg_low16 = ["d9"], - d10: dreg, dreg_low16 = ["d10"], - d11: dreg, dreg_low16 = ["d11"], - d12: dreg, dreg_low16 = ["d12"], - d13: dreg, dreg_low16 = ["d13"], - d14: dreg, dreg_low16 = ["d14"], - d15: dreg, dreg_low16 = ["d15"], + d0: dreg_low8, dreg_low16, dreg = ["d0"], + d1: dreg_low8, dreg_low16, dreg = ["d1"], + d2: dreg_low8, dreg_low16, dreg = ["d2"], + d3: dreg_low8, dreg_low16, dreg = ["d3"], + d4: dreg_low8, dreg_low16, dreg = ["d4"], + d5: dreg_low8, dreg_low16, dreg = ["d5"], + d6: dreg_low8, dreg_low16, dreg = ["d6"], + d7: dreg_low8, dreg_low16, dreg = ["d7"], + d8: dreg_low16, dreg = ["d8"], + d9: dreg_low16, dreg = ["d9"], + d10: dreg_low16, dreg = ["d10"], + d11: dreg_low16, dreg = ["d11"], + d12: dreg_low16, dreg = ["d12"], + d13: dreg_low16, dreg = ["d13"], + d14: dreg_low16, dreg = ["d14"], + d15: dreg_low16, dreg = ["d15"], d16: dreg = ["d16"], d17: dreg = ["d17"], d18: dreg = ["d18"], @@ -212,14 +212,14 @@ def_regs! { d29: dreg = ["d29"], d30: dreg = ["d30"], d31: dreg = ["d31"], - q0: qreg, qreg_low8, qreg_low4 = ["q0"], - q1: qreg, qreg_low8, qreg_low4 = ["q1"], - q2: qreg, qreg_low8, qreg_low4 = ["q2"], - q3: qreg, qreg_low8, qreg_low4 = ["q3"], - q4: qreg, qreg_low8 = ["q4"], - q5: qreg, qreg_low8 = ["q5"], - q6: qreg, qreg_low8 = ["q6"], - q7: qreg, qreg_low8 = ["q7"], + q0: qreg_low4, qreg_low8, qreg = ["q0"], + q1: qreg_low4, qreg_low8, qreg = ["q1"], + q2: qreg_low4, qreg_low8, qreg = ["q2"], + q3: qreg_low4, qreg_low8, qreg = ["q3"], + q4: qreg_low8, qreg = ["q4"], + q5: qreg_low8, qreg = ["q5"], + q6: qreg_low8, qreg = ["q6"], + q7: qreg_low8, qreg = ["q7"], q8: qreg = ["q8"], q9: qreg = ["q9"], q10: qreg = ["q10"], diff --git a/tests/ui/asm/arm-low-dreg.rs b/tests/ui/asm/arm-low-dreg.rs new file mode 100644 index 00000000000..e9ff0117e2d --- /dev/null +++ b/tests/ui/asm/arm-low-dreg.rs @@ -0,0 +1,33 @@ +//@ build-pass +//@ compile-flags: --target=armv7-unknown-linux-gnueabihf +//@ needs-llvm-components: arm +#![feature(no_core, rustc_attrs, decl_macro, lang_items)] +#![crate_type = "rlib"] +#![no_std] +#![no_core] + +// We accidentally classified "d0"..="d15" as dregs, even though they are in dreg_low16, +// and thus didn't compile them on platforms with only 16 dregs. +// Highlighted in https://github.com/rust-lang/rust/issues/126797 + +#[lang = "sized"] +trait Sized {} + +#[lang = "copy"] +trait Copy {} + +impl Copy for f64 {} + +#[rustc_builtin_macro] +pub macro asm("assembly template", $(operands,)* $(options($(option),*))?) { + /* compiler built-in */ +} + + +fn f(x: f64) -> f64 { + let out: f64; + unsafe { + asm!("vmov.f64 d1, d0", out("d1") out, in("d0") x); + } + out +} |