Bug 184730 – REGRESSION(r230748) [GTK][ARM] no matching function for call to 'JSC::CCallHelpers::swap(JSC::ARMRegisters::FPRegisterID&, JSC::ARMRegisters::FPRegisterID&)'

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Tomas Popela]

/builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/jit/CCallHelpers.h:171:13: error: no matching function for call to 'JSC::CCallHelpers::swap(JSC::ARMRegisters::FPRegisterID&, JSC::ARMRegisters::FPRegisterID&)'
             swap(source, dest);
             ^~~~
In file included from /builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/assembler/MacroAssembler.h:51,
                 from /builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/runtime/BasicBlockLocation.h:29,
                 from /builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/runtime/ControlFlowProfiler.h:29,
                 from /builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/runtime/VM.h:35,
                 from /builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/bytecode/ExecutableToCodeBlockEdge.h:31,
                 from /builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/runtime/FunctionExecutable.h:28,
                 from /builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/runtime/JSFunctionInlines.h:28,
                 from /builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/bytecode/AccessCase.h:30,
                 from /builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/bytecode/AccessCase.cpp:27,
                 from /builddir/build/BUILD/webkitgtk-2.21.1/armv7hl-redhat-linux-gnueabi/DerivedSources/JavaScriptCore/unified-sources/UnifiedSource25.cpp:1:
/builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/assembler/MacroAssemblerARM.h:646:10: note: candidate: 'void JSC::MacroAssemblerARM::swap(JSC::AbstractMacroAssembler<JSC::ARMAssembler>::RegisterID, JSC::AbstractMacroAssembler<JSC::ARMAssembler>::RegisterID)'
     void swap(RegisterID reg1, RegisterID reg2)
          ^~~~
/builddir/build/BUILD/webkitgtk-2.21.1/Source/JavaScriptCore/assembler/MacroAssemblerARM.h:646:10: note:   no known conversion for argument 1 from 'JSC::ARMRegisters::FPRegisterID' to 'JSC::AbstractMacroAssembler<JSC::ARMAssembler>::RegisterID' {aka 'JSC::ARMRegisters::RegisterID'}

[Mark Lam]

Interesting.  My memory is hazy, but does ARM's EABI pass floating point arguments in FP registers?

[Tomas Popela]

I could add that it's ARMv7 hardware without Thumb 2 support.

[Yusuke Suzuki]

Created attachment 338756 [details]
Patch

[Yusuke Suzuki]

(In reply to Mark Lam from comment #1)
> Interesting.  My memory is hazy, but does ARM's EABI pass floating point
> arguments in FP registers?

hardfp one uses this.

[Yusuke Suzuki]

Created attachment 338760 [details]
Patch

[Mark Lam]

Comment on attachment 338760 [details]
Patch

Nice work.  r=me

[Yusuke Suzuki]

Thanks for your review!

[WebKit Commit Bot]

Comment on attachment 338760 [details]
Patch

Clearing flags on attachment: 338760

Committed r231011: <https://trac.webkit.org/changeset/231011>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Radar WebKit Bug Importer]

<rdar://problem/39731210>

[Tomas Popela]

Thank you Yusuke for the fix!