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RJIT: Skip a class guard if known to be T_STRING

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This commit is contained in:
Takashi Kokubun 2023-04-05 00:46:09 -07:00
parent 9bef39de74
commit 65d27d3c0a
1 changed files with 6 additions and 3 deletions
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9
lib/ruby_vm/rjit/insn_compiler.rb
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@ -3878,9 +3878,12 @@ module RubyVM::RJIT
asm.je(equal_label)
# Otherwise guard that b is a T_STRING (from type info) or String (from runtime guard)
# Note: any T_STRING is valid here, but we check for a ::String for simplicity
# To pass a mutable static variable (rb_cString) requires an unsafe block
jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_b), b_opnd, StackOpnd[0], comptime_b, side_exit)
btype = ctx.get_opnd_type(StackOpnd[0])
unless btype.string?
# Note: any T_STRING is valid here, but we check for a ::String for simplicity
# To pass a mutable static variable (rb_cString) requires an unsafe block
jit_guard_known_klass(jit, ctx, asm, C.rb_class_of(comptime_b), b_opnd, StackOpnd[0], comptime_b, side_exit)
end
asm.comment('call rb_str_eql_internal')
asm.mov(C_ARGS[0], a_opnd)