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JSON target specs: remove 'x86-softfloat' compatibility alias #157151

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JSON target specs: remove 'x86-softfloat' compatibility alias #157151

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f6d98a4
JSON target specs: remove 'x86-softfloat' compatibility alias
RalfJung May 30, 2026
f0ac18a
CI: rfl: add temporary commit for removal of `x86-softfloat`
ojeda May 30, 2026
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2 changes: 1 addition & 1 deletion compiler/rustc_target/src/spec/mod.rs
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Expand Up @@ -993,7 +993,7 @@ crate::target_spec_enum! {
/// On x86-32 only: make use of SSE and SSE2 for ABI purposes.
X86Sse2 = "x86-sse2",
/// On x86-32/64, aarch64, and S390x: do not use any FPU or SIMD registers for the ABI.
Softfloat = "softfloat", "x86-softfloat",
Softfloat = "softfloat",
}

parse_error_type = "rustc abi";
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3 changes: 2 additions & 1 deletion src/ci/docker/scripts/rfl-build.sh
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Expand Up @@ -2,7 +2,8 @@

set -euo pipefail

LINUX_VERSION=v7.1-rc1
# https://github.com/rust-lang/rust/pull/157151
LINUX_VERSION=40bc55834bc15896f4438b0936c679ef32e20df1

# Build rustc, rustdoc, cargo, clippy-driver and rustfmt
../x.py build --stage 2 library rustdoc clippy rustfmt
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2 changes: 1 addition & 1 deletion src/tools/miri/tests/x86_64-unknown-kernel.json
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Expand Up @@ -10,7 +10,7 @@
"vendor": "unknown",
"linker": "rust-lld",
"linker-flavor": "gnu-lld",
"rustc-abi": "x86-softfloat",
"rustc-abi": "softfloat",
"features": "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2,+soft-float",
"dynamic-linking": false,
"executables": true,
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