Bug 173929 - LLint ARM64 assembler can't compare and branch with SP as second operand
Summary: LLint ARM64 assembler can't compare and branch with SP as second operand
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:
Depends on:
Blocks:
 
Reported: 2017-06-28 10:23 PDT by JF Bastien
Modified: 2017-06-28 23:27 PDT (History)
7 users (show)

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Description JF Bastien 2017-06-28 10:23:50 PDT
See build break in: https://bugs.webkit.org/show_bug.cgi?id=173922

`subs xzr, x1, sp` isn't a valid instruction in ARM64. arm64.rb should know how to flip operands and condition if the last operand is sp.