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platform-support: document CPU baseline for x86-32 targets
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‎src/doc/rustc/src/platform-support.md

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@@ -34,9 +34,9 @@ target | notes
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[`aarch64-apple-darwin`](platform-support/apple-darwin.md) | ARM64 macOS (11.0+, Big Sur+)
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`aarch64-unknown-linux-gnu` | ARM64 Linux (kernel 4.1, glibc 2.17+)
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`i686-pc-windows-gnu` | 32-bit MinGW (Windows 10+, Windows Server 2016+) [^x86_32-floats-return-ABI]
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`i686-pc-windows-msvc` | 32-bit MSVC (Windows 10+, Windows Server 2016+) [^x86_32-floats-return-ABI]
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`i686-unknown-linux-gnu` | 32-bit Linux (kernel 3.2+, glibc 2.17+) [^x86_32-floats-return-ABI]
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`i686-pc-windows-gnu` | 32-bit MinGW (Windows 10+, Windows Server 2016+, Pentium 4) [^x86_32-floats-return-ABI]
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`i686-pc-windows-msvc` | 32-bit MSVC (Windows 10+, Windows Server 2016+, Pentium 4) [^x86_32-floats-return-ABI]
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`i686-unknown-linux-gnu` | 32-bit Linux (kernel 3.2+, glibc 2.17+, Pentium 4) [^x86_32-floats-return-ABI]
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[`x86_64-apple-darwin`](platform-support/apple-darwin.md) | 64-bit macOS (10.12+, Sierra+)
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`x86_64-pc-windows-gnu` | 64-bit MinGW (Windows 10+, Windows Server 2016+)
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`x86_64-pc-windows-msvc` | 64-bit MSVC (Windows 10+, Windows Server 2016+)
@@ -162,14 +162,14 @@ target | std | notes
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[`armv7a-none-eabi`](platform-support/arm-none-eabi.md) | * | Bare Armv7-A
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[`armv7r-none-eabi`](platform-support/armv7r-none-eabi.md) | * | Bare Armv7-R
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[`armv7r-none-eabihf`](platform-support/armv7r-none-eabi.md) | * | Bare Armv7-R, hardfloat
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`i586-pc-windows-msvc` | * | 32-bit Windows w/o SSE [^x86_32-floats-x87]
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`i586-unknown-linux-gnu` | ✓ | 32-bit Linux w/o SSE (kernel 3.2, glibc 2.17) [^x86_32-floats-x87]
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`i586-unknown-linux-musl` | ✓ | 32-bit Linux w/o SSE, musl 1.2.3 [^x86_32-floats-x87]
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[`i686-linux-android`](platform-support/android.md) | ✓ | 32-bit x86 Android [^x86_32-floats-return-ABI]
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[`i686-pc-windows-gnullvm`](platform-support/pc-windows-gnullvm.md) | ✓ | 32-bit x86 MinGW (Windows 10+), LLVM ABI [^x86_32-floats-return-ABI]
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[`i686-unknown-freebsd`](platform-support/freebsd.md) | ✓ | 32-bit x86 FreeBSD [^x86_32-floats-return-ABI]
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`i686-unknown-linux-musl` | ✓ | 32-bit Linux with musl 1.2.3 [^x86_32-floats-return-ABI]
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[`i686-unknown-uefi`](platform-support/unknown-uefi.md) | ? | 32-bit UEFI
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`i586-pc-windows-msvc` | * | 32-bit Windows (original Pentium) [^x86_32-floats-x87]
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`i586-unknown-linux-gnu` | ✓ | 32-bit Linux (kernel 3.2, glibc 2.17, original Pentium) [^x86_32-floats-x87]
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`i586-unknown-linux-musl` | ✓ | 32-bit Linux (musl 1.2.3, original Pentium) [^x86_32-floats-x87]
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[`i686-linux-android`](platform-support/android.md) | ✓ | 32-bit x86 Android ([PentiumPro with SSE](https://developer.android.com/ndk/guides/abis.html#x86)) [^x86_32-floats-return-ABI]
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[`i686-pc-windows-gnullvm`](platform-support/pc-windows-gnullvm.md) | ✓ | 32-bit x86 MinGW (Windows 10+, Pentium 4), LLVM ABI [^x86_32-floats-return-ABI]
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[`i686-unknown-freebsd`](platform-support/freebsd.md) | ✓ | 32-bit x86 FreeBSD (Pentium 4) [^x86_32-floats-return-ABI]
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`i686-unknown-linux-musl` | ✓ | 32-bit Linux with musl 1.2.3 (Pentium 4) [^x86_32-floats-return-ABI]
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[`i686-unknown-uefi`](platform-support/unknown-uefi.md) | ? (softfloat) | 32-bit UEFI
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[`loongarch64-unknown-none`](platform-support/loongarch-none.md) | * | LoongArch64 Bare-metal (LP64D ABI)
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[`loongarch64-unknown-none-softfloat`](platform-support/loongarch-none.md) | * | LoongArch64 Bare-metal (LP64S ABI)
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[`nvptx64-nvidia-cuda`](platform-support/nvptx64-nvidia-cuda.md) | * | --emit=asm generates PTX code that [runs on NVIDIA GPUs]
@@ -307,15 +307,15 @@ target | std | host | notes
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`csky-unknown-linux-gnuabiv2hf` | ✓ | | C-SKY abiv2 Linux, hardfloat (little endian)
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[`hexagon-unknown-linux-musl`](platform-support/hexagon-unknown-linux-musl.md) | ✓ | | Hexagon Linux with musl 1.2.3
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[`hexagon-unknown-none-elf`](platform-support/hexagon-unknown-none-elf.md)| * | | Bare Hexagon (v60+, HVX)
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[`i386-apple-ios`](platform-support/apple-ios.md) | ✓ | | 32-bit x86 iOS [^x86_32-floats-return-ABI]
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[`i586-pc-nto-qnx700`](platform-support/nto-qnx.md) | * | | 32-bit x86 QNX Neutrino 7.0 RTOS [^x86_32-floats-return-ABI]
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[`i586-unknown-netbsd`](platform-support/netbsd.md) | ✓ | | 32-bit x86, restricted to Pentium [^x86_32-floats-x87]
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[`i686-apple-darwin`](platform-support/apple-darwin.md) | ✓ | ✓ | 32-bit macOS (10.12+, Sierra+) [^x86_32-floats-return-ABI]
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`i686-unknown-haiku` | ✓ | ✓ | 32-bit Haiku with SSE [^x86_32-floats-return-ABI]
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[`i686-unknown-hurd-gnu`](platform-support/hurd.md) | ✓ | ✓ | 32-bit GNU/Hurd w/o SSE [^x86_32-floats-x87]
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[`i686-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | NetBSD/i386 with SSE2 [^x86_32-floats-return-ABI]
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[`i686-unknown-openbsd`](platform-support/openbsd.md) | ✓ | ✓ | 32-bit OpenBSD with SSE2 [^x86_32-floats-return-ABI]
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[`i686-unknown-redox`](platform-support/redox.md) | ✓ | | i686 Redox OS w/o SSE [^x86_32-floats-x87]
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[`i386-apple-ios`](platform-support/apple-ios.md) | ✓ | | 32-bit x86 iOS (Penryn) [^x86_32-floats-return-ABI]
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[`i586-pc-nto-qnx700`](platform-support/nto-qnx.md) | * | | 32-bit x86 QNX Neutrino 7.0 RTOS (Pentium 4) [^x86_32-floats-return-ABI]
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[`i586-unknown-netbsd`](platform-support/netbsd.md) | ✓ | | 32-bit x86 (original Pentium) [^x86_32-floats-x87]
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[`i686-apple-darwin`](platform-support/apple-darwin.md) | ✓ | ✓ | 32-bit macOS (10.12+, Sierra+, Penryn) [^x86_32-floats-return-ABI]
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`i686-unknown-haiku` | ✓ | ✓ | 32-bit Haiku (Pentium 4) [^x86_32-floats-return-ABI]
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[`i686-unknown-hurd-gnu`](platform-support/hurd.md) | ✓ | ✓ | 32-bit GNU/Hurd (PentiumPro) [^x86_32-floats-x87]
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[`i686-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | NetBSD/i386 (Pentium 4) [^x86_32-floats-return-ABI]
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[`i686-unknown-openbsd`](platform-support/openbsd.md) | ✓ | ✓ | 32-bit OpenBSD (Pentium 4) [^x86_32-floats-return-ABI]
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[`i686-unknown-redox`](platform-support/redox.md) | ✓ | | i686 Redox OS (PentiumPro) [^x86_32-floats-x87]
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`i686-uwp-windows-gnu` | ✓ | | [^x86_32-floats-return-ABI]
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[`i686-uwp-windows-msvc`](platform-support/uwp-windows-msvc.md) | ✓ | | [^x86_32-floats-return-ABI]
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[`i686-win7-windows-gnu`](platform-support/win7-windows-gnu.md) | ✓ | | 32-bit Windows 7 support [^x86_32-floats-return-ABI]

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