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8284742: x86: Handle integral division overflow during parsing

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Reviewed-by: kvn, mdoerr
This commit is contained in:
Quan Anh Mai 2022-04-20 16:17:01 +00:00 • committed by Vladimir Kozlov
parent 5291ec8d56
commit b4a85cdae1
24 changed files with 648 additions and 378 deletions
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14
src/hotspot/cpu/x86/assembler_x86.cpp
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@ -2235,6 +2235,13 @@ void Assembler::idivl(Register src) {
emit_int16((unsigned char)0xF7, (0xF8 | encode));
}
void Assembler::idivl(Address src) {
InstructionMark im(this);
prefix(src);
emit_int8((unsigned char)0xF7);
emit_operand(as_Register(7), src);
}
void Assembler::divl(Register src) { // Unsigned
int encode = prefix_and_encode(src->encoding());
emit_int16((unsigned char)0xF7, (0xF0 | encode));
@ -12366,6 +12373,13 @@ void Assembler::idivq(Register src) {
emit_int16((unsigned char)0xF7, (0xF8 | encode));
}
void Assembler::idivq(Address src) {
InstructionMark im(this);
prefixq(src);
emit_int8((unsigned char)0xF7);
emit_operand(as_Register(7), src);
}
void Assembler::divq(Register src) {
int encode = prefixq_and_encode(src->encoding());
emit_int16((unsigned char)0xF7, (0xF0 | encode));