| Message ID | 1478878851-22639-2-git-send-email-james.greenhalgh@arm.com |
|---|---|
| State | New |
| Headers | show |
On Fri, Nov 11, 2016 at 03:40:50PM +0000, James Greenhalgh wrote: > > Hi, > > This patch enables the conversion functions we need for AArch64's _Float16 > support. To do that we need to implement TARGET_SCALAR_MODE_SUPPORTED_P, > so do that now. Ping. Thanks, James > > OK? > > Thanks, > James > > --- > gcc/ > > 2016-11-09 James Greenhalgh <james.greenhalgh@arm.com> > > * config/aarch64/aarch64-c.c (aarch64_scalar_mode_supported_p): New. > (TARGET_SCALAR_MODE_SUPPORTED_P): Define. > > libgcc/ > > 2016-11-09 James Greenhalgh <james.greenhalgh@arm.com> > > * config/aarch64/sfp-machine.h (_FP_NANFRAC_H): Define. > (_FP_NANSIGN_H): Likewise. > * config/aarch64/t-softfp (softfp_extensions): Add hftf. > (softfp_truncations): Add tfhf. > (softfp_extras): Add required conversion functions. >
On 11/11/16 15:40, James Greenhalgh wrote: > > Hi, > > This patch enables the conversion functions we need for AArch64's _Float16 > support. To do that we need to implement TARGET_SCALAR_MODE_SUPPORTED_P, > so do that now. > > OK? > > Thanks, > James > > --- > gcc/ > > 2016-11-09 James Greenhalgh <james.greenhalgh@arm.com> > > * config/aarch64/aarch64-c.c (aarch64_scalar_mode_supported_p): New. > (TARGET_SCALAR_MODE_SUPPORTED_P): Define. > > libgcc/ > > 2016-11-09 James Greenhalgh <james.greenhalgh@arm.com> > > * config/aarch64/sfp-machine.h (_FP_NANFRAC_H): Define. > (_FP_NANSIGN_H): Likewise. > * config/aarch64/t-softfp (softfp_extensions): Add hftf. > (softfp_truncations): Add tfhf. > (softfp_extras): Add required conversion functions. > > OK. R. > 0012-Patch-libgcc-AArch64-12-17-Enable-hfmode-soft-float-.patch > > > diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c > index b7d4640..ec17af4 100644 > --- a/gcc/config/aarch64/aarch64.c > +++ b/gcc/config/aarch64/aarch64.c > @@ -14168,6 +14168,17 @@ aarch64_optab_supported_p (int op, machine_mode mode1, machine_mode, > } > } > > +/* Implement TARGET_SCALAR_MODE_SUPPORTED_P - return TRUE > + if MODE is HFmode, and punt to the generic implementation otherwise. */ > + > +static bool > +aarch64_scalar_mode_supported_p (machine_mode mode) > +{ > + return (mode == HFmode > + ? true > + : default_scalar_mode_supported_p (mode)); > +} > + > #undef TARGET_ADDRESS_COST > #define TARGET_ADDRESS_COST aarch64_address_cost > > @@ -14378,6 +14389,9 @@ aarch64_optab_supported_p (int op, machine_mode mode1, machine_mode, > #undef TARGET_RTX_COSTS > #define TARGET_RTX_COSTS aarch64_rtx_costs_wrapper > > +#undef TARGET_SCALAR_MODE_SUPPORTED_P > +#define TARGET_SCALAR_MODE_SUPPORTED_P aarch64_scalar_mode_supported_p > + > #undef TARGET_SCHED_ISSUE_RATE > #define TARGET_SCHED_ISSUE_RATE aarch64_sched_issue_rate > > diff --git a/libgcc/config/aarch64/sfp-machine.h b/libgcc/config/aarch64/sfp-machine.h > index 5efa245..da154dd 100644 > --- a/libgcc/config/aarch64/sfp-machine.h > +++ b/libgcc/config/aarch64/sfp-machine.h > @@ -42,9 +42,11 @@ typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); > > #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) > > +#define _FP_NANFRAC_H ((_FP_QNANBIT_H << 1) - 1) > #define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) > #define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1) > #define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1 > +#define _FP_NANSIGN_H 0 > #define _FP_NANSIGN_S 0 > #define _FP_NANSIGN_D 0 > #define _FP_NANSIGN_Q 0 > diff --git a/libgcc/config/aarch64/t-softfp b/libgcc/config/aarch64/t-softfp > index 586dca2..c4ce0dc 100644 > --- a/libgcc/config/aarch64/t-softfp > +++ b/libgcc/config/aarch64/t-softfp > @@ -1,8 +1,9 @@ > softfp_float_modes := tf > softfp_int_modes := si di ti > -softfp_extensions := sftf dftf > -softfp_truncations := tfsf tfdf > +softfp_extensions := sftf dftf hftf > +softfp_truncations := tfsf tfdf tfhf > softfp_exclude_libgcc2 := n > +softfp_extras := fixhfti fixunshfti floattihf floatuntihf > > TARGET_LIBGCC2_CFLAGS += -Wno-missing-prototypes > >
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index b7d4640..ec17af4 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -14168,6 +14168,17 @@ aarch64_optab_supported_p (int op, machine_mode mode1, machine_mode, } } +/* Implement TARGET_SCALAR_MODE_SUPPORTED_P - return TRUE + if MODE is HFmode, and punt to the generic implementation otherwise. */ + +static bool +aarch64_scalar_mode_supported_p (machine_mode mode) +{ + return (mode == HFmode + ? true + : default_scalar_mode_supported_p (mode)); +} + #undef TARGET_ADDRESS_COST #define TARGET_ADDRESS_COST aarch64_address_cost @@ -14378,6 +14389,9 @@ aarch64_optab_supported_p (int op, machine_mode mode1, machine_mode, #undef TARGET_RTX_COSTS #define TARGET_RTX_COSTS aarch64_rtx_costs_wrapper +#undef TARGET_SCALAR_MODE_SUPPORTED_P +#define TARGET_SCALAR_MODE_SUPPORTED_P aarch64_scalar_mode_supported_p + #undef TARGET_SCHED_ISSUE_RATE #define TARGET_SCHED_ISSUE_RATE aarch64_sched_issue_rate diff --git a/libgcc/config/aarch64/sfp-machine.h b/libgcc/config/aarch64/sfp-machine.h index 5efa245..da154dd 100644 --- a/libgcc/config/aarch64/sfp-machine.h +++ b/libgcc/config/aarch64/sfp-machine.h @@ -42,9 +42,11 @@ typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_2_udiv(Q,R,X,Y) +#define _FP_NANFRAC_H ((_FP_QNANBIT_H << 1) - 1) #define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) #define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1) #define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1 +#define _FP_NANSIGN_H 0 #define _FP_NANSIGN_S 0 #define _FP_NANSIGN_D 0 #define _FP_NANSIGN_Q 0 diff --git a/libgcc/config/aarch64/t-softfp b/libgcc/config/aarch64/t-softfp index 586dca2..c4ce0dc 100644 --- a/libgcc/config/aarch64/t-softfp +++ b/libgcc/config/aarch64/t-softfp @@ -1,8 +1,9 @@ softfp_float_modes := tf softfp_int_modes := si di ti -softfp_extensions := sftf dftf -softfp_truncations := tfsf tfdf +softfp_extensions := sftf dftf hftf +softfp_truncations := tfsf tfdf tfhf softfp_exclude_libgcc2 := n +softfp_extras := fixhfti fixunshfti floattihf floatuntihf TARGET_LIBGCC2_CFLAGS += -Wno-missing-prototypes