rustc_trans: clobber $1 (aka $at) on mips
This copies what clang does. There is a long explanation as to why this is needed in the clang source (tools/clang/lib/Basic/Targets/Mips.h).
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@ -59,8 +59,9 @@ pub fn trans_inline_asm<'a, 'tcx>(
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// Default per-arch clobbers
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// Basically what clang does
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let arch_clobbers = match &bx.sess().target.target.arch[..] {
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"x86" | "x86_64" => vec!["~{dirflag}", "~{fpsr}", "~{flags}"],
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_ => Vec::new()
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"x86" | "x86_64" => vec!["~{dirflag}", "~{fpsr}", "~{flags}"],
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"mips" | "mips64" => vec!["~{$1}"],
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_ => Vec::new()
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};
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let all_constraints =
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