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Merge pull request #2698 from rtfeldman/i/2696

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Make sure casting to unsigned types performs zero-extension
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Brendan Hansknecht 2022-03-10 20:10:33 -08:00 • committed by GitHub
commit cdf19e3feb
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9 changed files with 67 additions and 16 deletions
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6
compiler/gen_llvm/src/llvm/compare.rs
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@ -1127,8 +1127,10 @@ fn build_tag_eq_help<'a, 'ctx, 'env>(
let i8_type = env.context.i8_type();
let sum = env.builder.build_int_add(
env.builder.build_int_cast(is_null_1, i8_type, "to_u8"),
env.builder.build_int_cast(is_null_2, i8_type, "to_u8"),
env.builder
.build_int_cast_sign_flag(is_null_1, i8_type, false, "to_u8"),
env.builder
.build_int_cast_sign_flag(is_null_2, i8_type, false, "to_u8"),
"sum_is_null",
);