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Support vectors with fewer than 8 elements for simd_select_bitmask #77504

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merged 1 commit into from
Oct 4, 2020

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Amanieu
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@Amanieu Amanieu commented Oct 3, 2020

Resolves the issue raised here: rust-lang/stdarch#310 (comment)

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r? @ecstatic-morse

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@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Oct 3, 2020
@@ -793,14 +793,16 @@ fn generic_simd_intrinsic(
require_simd!(arg_tys[1], "argument");
let v_len = arg_tys[1].simd_size(tcx);
require!(
m_len == v_len,
m_len == v_len || (m_len == 8 && v_len < 8),
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Can you add a comment above the require that explains this? I found the juxtaposition between this and the error message below a bit confusing.

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r=me with CI passing and some kind of comment.

@Amanieu Amanieu force-pushed the select_simd_bitmask branch from e7e6c43 to e41a144 Compare October 3, 2020 19:36
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Amanieu commented Oct 3, 2020

@bors r=ecstatic-morse

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bors commented Oct 3, 2020

📌 Commit e41a144 has been approved by ecstatic-morse

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Oct 3, 2020
bors added a commit to rust-lang-ci/rust that referenced this pull request Oct 4, 2020
…as-schievink

Rollup of 8 pull requests

Successful merges:

 - rust-lang#77072 (Minor `hash_map` doc adjustments + item attribute orderings)
 - rust-lang#77368 (Backport LLVM apfloat commit to rustc_apfloat)
 - rust-lang#77445 (BTreeMap: complete the compile-time test_variance test case)
 - rust-lang#77504 (Support vectors with fewer than 8 elements for simd_select_bitmask)
 - rust-lang#77513 (Change DocFragments from enum variant fields to structs with a nested enum)
 - rust-lang#77518 (Only use Fira Sans for the first `td` in item lists)
 - rust-lang#77521 (Move target feature whitelist from cg_llvm to cg_ssa)
 - rust-lang#77525 (Enable RenameReturnPlace MIR optimization on mir-opt-level >= 2)

Failed merges:

r? `@ghost`
@bors bors merged commit 5bd9ce5 into rust-lang:master Oct 4, 2020
@rustbot rustbot added this to the 1.49.0 milestone Oct 4, 2020
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5 participants