Bug 243888 - [JSC] Air support in Armv7 will not use advanced SIMD FP registers
Summary: [JSC] Air support in Armv7 will not use advanced SIMD FP registers
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: JavaScriptCore (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2022-08-12 11:29 PDT by Joseph Griego
Modified: 2022-08-19 11:30 PDT (History)
1 user (show)

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Description Joseph Griego 2022-08-12 11:29:34 PDT 
Although there are advanced SIMD extensions to ARMv7 that add an extra 16 floating point registers--these can't be used as f32 operands and so we can't let Air use them without adjusting Air to have some idea about multiple classes of register within the FP bank--on currently supported architectures, any FP register is as good as any other for any operation.

Only relevant after https://bugs.webkit.org/show_bug.cgi?id=241009 is resolved.
Comment 1 Radar WebKit Bug Importer 2022-08-19 11:30:45 PDT 
<rdar://problem/98891877>