Breakpoint 2, EmitObjectOpResultCheck<js::jit::IonOOLProxyExitFrameLayout> (masm=...,
    failure=0x7fffffffc91c, strict=false, scratchReg=..., argJSContextReg=..., argIdReg=...,
    argStrictReg=..., argResultReg=...) at /home/jorendorff/dev/gecko/js/src/jit/IonCaches.cpp:2051
warning: Source file is more recent than executable.
2051	    Label noStrictError;
Missing separate debuginfos, use: debuginfo-install ncurses-libs-5.9-12.20130511.fc20.x86_64 readline-6.2-10.fc20.x86_64
(gdb) n
2056	                   &noStrictError);
(gdb)
2054	                           FrameLayout::offsetOfObjectOpResult()),
(gdb)
2056	                   &noStrictError);
(gdb)
2052	    masm.branchPtr(Assembler::Equal,
(gdb)
[Codegen] cmpq       $0x0, 0x40(%rsp)
[Codegen] je         .Lfrom212
2060	    masm.loadJSContext(argJSContextReg);
(gdb)
[Codegen] movq       0x1cad558, %rax
2062	        Address(StackPointer, FrameLayout::offsetOfId()),
(gdb)
2063	        argIdReg);
(gdb)
2061	    masm.computeEffectiveAddress(
(gdb)
[Codegen] leaq       0x30(%rsp), %rbp
2064	    masm.move32(Imm32(strict), argStrictReg);
(gdb) n
[Codegen] xorl       %ebx, %ebx
2066	        Address(StackPointer, FrameLayout::offsetOfObjectOpResult()),
(gdb)
2067	        argResultReg);
(gdb)
2065	    masm.computeEffectiveAddress(
(gdb)
[Codegen] leaq       0x40(%rsp), %rdi
2068	    masm.setupUnalignedABICall(4, scratchReg);
(gdb)

[Codegen] movq       %rsp, %r8
[Codegen] andq       $0xfffffffffffffff0, %rsp
[Codegen] push       %r8
2069	    masm.passABIArg(argJSContextReg);
(gdb)
2070	    masm.passABIArg(argIdReg);
(gdb)
2071	    masm.passABIArg(argStrictReg);
(gdb)
2072	    masm.passABIArg(argResultReg);
(gdb)
2073	    masm.callWithABI(JS_FUNC_TO_DATA_PTR(void *, ReportStrictErrorOrWarning));
(gdb)
[Codegen] subq       $8, %rsp
[Codegen] movq       %rdi, %rcx
[Codegen] movq       %rbx, %rdx
[Codegen] movq       %rbp, %rsi
[Codegen] movq       %rax, %rdi
[Codegen] testb      $0xf, %spl
[Codegen] je         .Lfrom267
[Codegen] int3
[Codegen] .set .Llabel268, .
[Codegen] .set .Lfrom267, .Llabel268
[Codegen] movl       $0x9b3180, %eax
[Codegen] call       *%rax
[Codegen] addq       $8, %rsp
[Codegen] pop        %rsp
2074	    masm.branchIfFalseBool(ReturnReg, failure);
(gdb)
[Codegen] testb      $0xff, %al
[Codegen] je         .Lfrom288
2077	    masm.bind(&noStrictError);
(gdb)
[Codegen] .set .Llabel288, .
[Codegen] .set .Lfrom212, .Llabel288
2078	}
(gdb) c
Continuing.