MIPS32: Bit rotation intrinsics
- int java.lang.Integer.rotateLeft(int i, int distance)
- int java.lang.Integer.rotateRight(int i, int distance)
- long java.lang.Long.rotateLeft(long i, int distance)
- long java.lang.Long.rotateRight(long i, int distance)
Change-Id: I7620ee12562c0dd55476a1d54e225c5e624cfb5b
diff --git a/compiler/utils/mips/assembler_mips.cc b/compiler/utils/mips/assembler_mips.cc
index 5a4de82..42f21e6 100644
--- a/compiler/utils/mips/assembler_mips.cc
+++ b/compiler/utils/mips/assembler_mips.cc
@@ -387,6 +387,10 @@
EmitR(0, rs, rt, rd, 0, 0x06);
}
+void MipsAssembler::Rotrv(Register rd, Register rt, Register rs) {
+ EmitR(0, rs, rt, rd, 1, 0x06);
+}
+
void MipsAssembler::Srav(Register rd, Register rt, Register rs) {
EmitR(0, rs, rt, rd, 0, 0x07);
}
diff --git a/compiler/utils/mips/assembler_mips.h b/compiler/utils/mips/assembler_mips.h
index 91ec804..d50b4f6 100644
--- a/compiler/utils/mips/assembler_mips.h
+++ b/compiler/utils/mips/assembler_mips.h
@@ -153,6 +153,7 @@
void Sra(Register rd, Register rt, int shamt);
void Sllv(Register rd, Register rt, Register rs);
void Srlv(Register rd, Register rt, Register rs);
+ void Rotrv(Register rd, Register rt, Register rs); // R2+
void Srav(Register rd, Register rt, Register rs);
void Lb(Register rt, Register rs, uint16_t imm16);