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Fix an obvious bug in GCC-4.3.2's ARM code generator.
PR target/37668
* arm.c (arm_size_rtx_costs, case NEG): Don't fall through if the
result will be in an FPU register.
This has been applied in gcc-4.4.0
Martin Guy <martinwguy@yahoo.it>
*** gcc-4.3.2/gcc/config/arm/arm.c (revision 142660)
--- gcc-4.3.2/gcc/config/arm/arm.c (local)
*************** arm_size_rtx_costs (rtx x, int code, int
*** 5201,5207 ****
case NEG:
if (TARGET_HARD_FLOAT && GET_MODE_CLASS (mode) == MODE_FLOAT)
! *total = COSTS_N_INSNS (1);
/* Fall through */
case NOT:
*total = COSTS_N_INSNS (ARM_NUM_REGS (mode));
--- 5201,5211 ----
case NEG:
if (TARGET_HARD_FLOAT && GET_MODE_CLASS (mode) == MODE_FLOAT)
! {
! *total = COSTS_N_INSNS (1);
! return false;
! }
!
/* Fall through */
case NOT:
*total = COSTS_N_INSNS (ARM_NUM_REGS (mode));
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