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8360520: RISC-V: C1: Fix primitive array clone intrinsic regression after JDK-8333154 #25976

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8360520: RISC-V: C1: Fix primitive array clone intrinsic regression after JDK-8333154 #25976

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445f903
riscv: fix c1 primitive array clone intrinsic regression
feilongjiang Jun 24, 2025
7af2ea3
check unaligned flag at LIR_OpArrayCopy to avoid using AvoidUnaligned…
feilongjiang Jun 26, 2025
be98042
Merge branch 'master' of https://github.com/openjdk/jdk into riscv-fi…
feilongjiang Jun 26, 2025
a3c6a09
Revert RISCV Macro modification
feilongjiang Jul 6, 2025
3a502f8
Merge branch 'master' of https://github.com/openjdk/jdk into riscv-fi…
feilongjiang Jul 6, 2025
ca628e1
Merge branch 'master' of https://github.com/openjdk/jdk into riscv-fi…
feilongjiang Jul 9, 2025
eb0e2ed
also keep overlapping flag
feilongjiang Jul 11, 2025
26148c2
Merge branch 'master' of https://github.com/openjdk/jdk into riscv-fi…
feilongjiang Jul 11, 2025
1b98aa3
Add get_initial_copy_flags
feilongjiang Jul 22, 2025
cc2a329
Merge branch 'master' of https://github.com/openjdk/jdk into riscv-fi…
feilongjiang Jul 22, 2025
657f92f
fix build
feilongjiang Jul 23, 2025
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2 changes: 1 addition & 1 deletion src/hotspot/cpu/riscv/c1_LIRGenerator_riscv.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -772,7 +772,7 @@ void LIRGenerator::do_ArrayCopy(Intrinsic* x) {
ciArrayKlass* expected_type = nullptr;
arraycopy_helper(x, &flags, &expected_type);
if (x->check_flag(Instruction::OmitChecksFlag)) {
flags = 0;
flags = (flags & LIR_OpArrayCopy::unaligned);
}

__ arraycopy(src.result(), src_pos.result(), dst.result(), dst_pos.result(), length.result(), tmp,
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2 changes: 1 addition & 1 deletion src/hotspot/share/c1/c1_Compiler.cpp
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Expand Up @@ -237,7 +237,7 @@ bool Compiler::is_intrinsic_supported(vmIntrinsics::ID id) {
case vmIntrinsics::_counterTime:
#endif
case vmIntrinsics::_getObjectSize:
#if defined(X86) || defined(AARCH64) || defined(S390) || defined(RISCV) || defined(PPC64)
#if defined(X86) || defined(AARCH64) || defined(S390) || defined(RISCV64) || defined(PPC64)
case vmIntrinsics::_clone:
#endif
break;
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4 changes: 2 additions & 2 deletions src/hotspot/share/c1/c1_LIR.cpp
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Expand Up @@ -350,8 +350,8 @@ LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_
, _tmp(tmp)
, _expected_type(expected_type)
, _flags(flags) {
#if defined(X86) || defined(AARCH64) || defined(S390) || defined(RISCV) || defined(PPC64)
if (expected_type != nullptr && flags == 0) {
#if defined(X86) || defined(AARCH64) || defined(S390) || defined(RISCV64) || defined(PPC64)
if (expected_type != nullptr && ((flags & ~LIR_OpArrayCopy::unaligned) == 0)) {
_stub = nullptr;
} else {
_stub = new ArrayCopyStub(this);
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