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compiler-rt: workaround miscompilation in memmove

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dweiller 2025-01-16 16:45:12 +11:00
parent 4db01eb130
commit 63f5a80b71
1 changed files with 2 additions and 1 deletions
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lib/compiler_rt/memmove.zig
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@ -137,7 +137,8 @@ inline fn copyRange4(
const d2 = src[pen..][0..copy_len].*; const d2 = src[pen..][0..copy_len].*;
const d3 = src[last..][0..copy_len].*; const d3 = src[last..][0..copy_len].*;
dest[0..copy_len].* = d0; // the slice dest[0..len] is needed to workaround -ODebug miscompilation
dest[0..len][0..copy_len].* = d0;
dest[b..][0..copy_len].* = d1; dest[b..][0..copy_len].* = d1;
dest[pen..][0..copy_len].* = d2; dest[pen..][0..copy_len].* = d2;
dest[last..][0..copy_len].* = d3; dest[last..][0..copy_len].* = d3;