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rust source #1
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mrustc (master)
rustc 1.0.0
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rustc 1.78.0
rustc 1.8.0
rustc 1.9.0
rustc beta
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rustc-cg-gcc (master)
x86-64 GCCRS (GCC master)
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Source code
/// Put `b` into `a` if `cond` is true, otherwise keep `a` as-is. #[no_mangle] pub fn cmov(a: &mut u64, b: u64, cond: bool) { let mask: u64 = (-(cond as i64)) as u64; *a ^= *a & mask; *a ^= b & mask; }
llvm source #2
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Compiler
clang (assertions trunk)
clang (trunk)
clang 10.0.0
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clang 11.0.0
clang 11.0.1
clang 12.0.0
clang 12.0.1
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clang 18.1.0
clang 4.0.1
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clang 9.0.0
llc (assertions trunk)
llc (trunk)
llc 10.0.0
llc 10.0.1
llc 11.0.0
llc 11.0.1
llc 12.0.0
llc 12.0.1
llc 13.0.0
llc 14.0.0
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llc 18.1.0
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llc 4.0.0
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opt (assertions trunk)
opt (trunk)
opt 10.0.0
opt 10.0.1
opt 11.0.0
opt 11.0.1
opt 12.0.0
opt 12.0.1
opt 13.0.0
opt 14.0.0
opt 15.0.0
opt 16.0.0
opt 17.0.1
opt 18.1.0
opt 3.2
opt 3.3
opt 3.9.1
opt 4.0.0
opt 4.0.1
opt 5.0.0
opt 6.0.0
opt 7.0.0
opt 8.0.0
opt 9.0.0
Options
Source code
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" define void @cmov(i64* nocapture align 8 dereferenceable(8) %a, i64 %b, i1 zeroext %cond) unnamed_addr #0 { %_9 = load i64, i64* %a, align 8 %1 = select i1 %cond, i64 %b, i64 %_9 store i64 %1, i64* %a, align 8 ret void }
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