diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e640faf2210..80ffa581870 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2014-04-22 Ramana Radhakrishnan + + * config/arm/arm.c (arm_hard_regno_mode_ok): Loosen + restrictions on core registers for DImode values in Thumb2. + 2014-04-22 Ian Bolton * config/arm/arm.md (*anddi_notdi_zesidi): New pattern. diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 08b52557586..88d957a21f6 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -22646,12 +22646,19 @@ arm_hard_regno_mode_ok (unsigned int regno, enum machine_mode mode) } /* We allow almost any value to be stored in the general registers. - Restrict doubleword quantities to even register pairs so that we can - use ldrd. Do not allow very large Neon structure opaque modes in - general registers; they would use too many. */ + Restrict doubleword quantities to even register pairs in ARM state + so that we can use ldrd. Do not allow very large Neon structure + opaque modes in general registers; they would use too many. */ if (regno <= LAST_ARM_REGNUM) - return !(TARGET_LDRD && GET_MODE_SIZE (mode) > 4 && (regno & 1) != 0) - && ARM_NUM_REGS (mode) <= 4; + { + if (ARM_NUM_REGS (mode) > 4) + return FALSE; + + if (TARGET_THUMB2) + return TRUE; + + return !(TARGET_LDRD && GET_MODE_SIZE (mode) > 4 && (regno & 1) != 0); + } if (regno == FRAME_POINTER_REGNUM || regno == ARG_POINTER_REGNUM)