From: Kelvin Nilsen <kel...@gcc.gnu.org> Add the centrifuge-doubleword instruction and built-in access.
Bootstrapped and tested on powerpc64le-unknown-linux-gnu with no regressions. Is this okay for master? Thanks, Bill [gcc] 2020-05-08 Kelvin Nilsen <kel...@gcc.gnu.org> * config/rs6000/rs6000-builtin.def (BU_FUTURE_MISC_0): New #define. (BU_FUTURE_MISC_1): Likewise. (BU_FUTURE_MISC_2): Likewise. (BU_FUTURE_MISC_3): Likewise. (__builtin_cfuged): New built-in function definition. * config/rs6000/rs6000.md (UNSPEC_CFUGED): New constant. (cfuged): New insn. * doc/extend.texi (Basic PowerPC Built-in Functions Available for a Future Architecture): New subsubsection. [gcc/testsuite] 2020-05-08 Kelvin Nilsen <kel...@gcc.gnu.org> * gcc.target.powerpc/cfuged-0.c: New test. * gcc.target.powerpc/cfuged-1.c: New test. --- gcc/config/rs6000/rs6000-builtin.def | 37 +++++++++++++++ gcc/config/rs6000/rs6000.md | 10 ++++ gcc/doc/extend.texi | 22 +++++++++ gcc/testsuite/gcc.target/powerpc/cfuged-0.c | 51 +++++++++++++++++++++ gcc/testsuite/gcc.target/powerpc/cfuged-1.c | 50 ++++++++++++++++++++ 5 files changed, 170 insertions(+) create mode 100644 gcc/testsuite/gcc.target/powerpc/cfuged-0.c create mode 100644 gcc/testsuite/gcc.target/powerpc/cfuged-1.c diff --git a/gcc/config/rs6000/rs6000-builtin.def b/gcc/config/rs6000/rs6000-builtin.def index e25249b5418..afc8487515f 100644 --- a/gcc/config/rs6000/rs6000-builtin.def +++ b/gcc/config/rs6000/rs6000-builtin.def @@ -993,6 +993,40 @@ | RS6000_BTC_TERNARY), \ CODE_FOR_nothing) /* ICODE */ +/* Miscellaneous (non-vector) builtins for instructions which may be + added at some point in the future. */ + +#define BU_FUTURE_MISC_0(ENUM, NAME, ATTR, ICODE) \ + RS6000_BUILTIN_0 (FUTURE_BUILTIN_ ## ENUM, /* ENUM */ \ + "__builtin_" NAME, /* NAME */ \ + RS6000_BTM_FUTURE, /* MASK */ \ + (RS6000_BTC_ ## ATTR /* ATTR */ \ + | RS6000_BTC_SPECIAL), \ + CODE_FOR_ ## ICODE) /* ICODE */ + +#define BU_FUTURE_MISC_1(ENUM, NAME, ATTR, ICODE) \ + RS6000_BUILTIN_1 (FUTURE_BUILTIN_ ## ENUM, /* ENUM */ \ + "__builtin_" NAME, /* NAME */ \ + RS6000_BTM_FUTURE, /* MASK */ \ + (RS6000_BTC_ ## ATTR /* ATTR */ \ + | RS6000_BTC_UNARY), \ + CODE_FOR_ ## ICODE) /* ICODE */ + +#define BU_FUTURE_MISC_2(ENUM, NAME, ATTR, ICODE) \ + RS6000_BUILTIN_2 (FUTURE_BUILTIN_ ## ENUM, /* ENUM */ \ + "__builtin_" NAME, /* NAME */ \ + RS6000_BTM_FUTURE, /* MASK */ \ + (RS6000_BTC_ ## ATTR /* ATTR */ \ + | RS6000_BTC_BINARY), \ + CODE_FOR_ ## ICODE) /* ICODE */ + +#define BU_FUTURE_MISC_3(ENUM, NAME, ATTR, ICODE) \ + RS6000_BUILTIN_3 (FUTURE_BUILTIN_ ## ENUM, /* ENUM */ \ + "__builtin_" NAME, /* NAME */ \ + RS6000_BTM_FUTURE, /* MASK */ \ + (RS6000_BTC_ ## ATTR /* ATTR */ \ + | RS6000_BTC_TERNARY), \ + CODE_FOR_ ## ICODE) /* ICODE */ #endif @@ -2539,6 +2573,9 @@ BU_P9_OVERLOAD_2 (CMPRB, "byte_in_range") BU_P9_OVERLOAD_2 (CMPRB2, "byte_in_either_range") BU_P9_OVERLOAD_2 (CMPEQB, "byte_in_set") +/* Future architecture scalar built-ins. */ +BU_FUTURE_MISC_2 (CFUGED, "cfuged", CONST, cfuged) + /* Future architecture vector built-ins. */ BU_FUTURE_V_2 (VCLZDM, "vclzdm", CONST, vclzdm) BU_FUTURE_V_2 (VCTZDM, "vctzdm", CONST, vctzdm) diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index c02c2e1de72..001ec27f403 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -148,6 +148,7 @@ (define_c_enum "unspec" UNSPEC_SI_FROM_SF UNSPEC_PLTSEQ UNSPEC_PLT16_HA + UNSPEC_CFUGED ]) ;; @@ -2453,6 +2454,15 @@ (define_insn "parity<mode>2_cmpb" "prty<wd> %0,%1" [(set_attr "type" "popcnt")]) +(define_insn "cfuged" + [(set (match_operand:DI 0 "register_operand" "=r") + (unspec:DI [(match_operand:DI 1 "gpc_reg_operand" "r") + (match_operand:DI 2 "gpc_reg_operand" "r")] + UNSPEC_CFUGED))] + "TARGET_FUTURE && TARGET_64BIT" + "cfuged %0,%1,%2" + [(set_attr "type" "integer")]) + (define_insn "cmpb<mode>3" [(set (match_operand:GPR 0 "gpc_reg_operand" "=r") (unspec:GPR [(match_operand:GPR 1 "gpc_reg_operand" "r") diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 4a4d3bd0918..8b5a51a6973 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -16980,6 +16980,7 @@ implementing assertions. * Basic PowerPC Built-in Functions Available on ISA 2.06:: * Basic PowerPC Built-in Functions Available on ISA 2.07:: * Basic PowerPC Built-in Functions Available on ISA 3.0:: +* Basic PowerPC Built-in Functions Available for a Future Architecture:: @end menu This section describes PowerPC built-in functions that do not require @@ -17533,6 +17534,27 @@ the FPSCR. The instruction is a lower latency version of the @code{mffs} instruction. If the @code{mffsl} instruction is not available, then the builtin uses the older @code{mffs} instruction to read the FPSCR. +@node Basic PowerPC Built-in Functions Available for a Future Architecture +@subsubsection Basic PowerPC Built-in Functions Available for a Future Architecture + +The basic built-in functions described in this section are +available on the PowerPC family of processors starting with a +hypothetical CPU which may or may not be available in the future, as +requested by specifying @option{-mcpu=future} on the command line. +Unless explicitly disabled on the command line, +specifying @option{-mcpu=future} has the effect of enabling all the +same options as for @option{-mcpu=power9}. + +The following built-in functions are available on Linux 64-bit systems +that use a future architecture instruction set (@option{-mcpu=future}): + +@smallexample +@exdent unsigned long long int +@exdent __builtin_cfuged (unsigned long long int, unsigned long long int) +@end smallexample +Perform a 64-bit centrifuge operation, as if implemented by the Future +@code{cfuged} instruction. +@findex __builtin_cfuged @node PowerPC AltiVec/VSX Built-in Functions @subsection PowerPC AltiVec/VSX Built-in Functions diff --git a/gcc/testsuite/gcc.target/powerpc/cfuged-0.c b/gcc/testsuite/gcc.target/powerpc/cfuged-0.c new file mode 100644 index 00000000000..da780eae5ef --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/cfuged-0.c @@ -0,0 +1,51 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target lp64 } */ +/* { dg-options "-mdejagnu-cpu=future" } */ + +extern void abort (void); + +unsigned long long int +do_cfuged (unsigned long long int source, unsigned long long int mask) +{ + return __builtin_cfuged (source, mask); +} + +int main (int argc, char *argv []) +{ + unsigned long long int sources [4], masks [4]; + unsigned long long int results [4][4] = { + /* sources[0] with each of masks [0 .. 3] */ + {0x7e3ca5f0ll, 0xa5f07e3cll, 0xaf7350ecll, 0x50ecaf73ll }, + /* sources[1] with each of masks [0 .. 3] */ + { 0xa5f07e3cll, 0x7e3ca5f0ll, 0x73afec50ll, 0xec5073afll }, + /* sources[2] with each of masks [0 .. 3] */ + { 0xf07e3ca5ll, 0x3ca5f07ell, 0x3af7c50ell, 0xc50e3af7ll }, + /* sources[3] with each of masks [0 .. 3] */ + { 0xe7c35a0fll, 0x5a0fe7c3ll, 0x50ecaf73ll, 0xaf7350ecll }, + }; + + sources[0] = 0xa5f07e3cll; + sources[1] = 0x7e3ca5f0ll; + sources[2] = 0x3ca5f07ell; + sources[3] = 0x5a0fe7c3ll; + + masks[0] = 0xffff0000ll; + masks[1] = 0x0000ffffll; + masks[2] = 0x0f0f0f0fll; + masks[3] = 0xf0f0f0f0ll; + + unsigned long long int result; + + for (int i = 0; i < 4; i++) + { + for (int j = 0; j < 4; j++) + { + if (do_cfuged (sources[i], masks[j]) != results [i][j]) + abort (); + } + } + + return 0; +} + +/* { dg-final { scan-assembler {\mcfuged\M} } } */ diff --git a/gcc/testsuite/gcc.target/powerpc/cfuged-1.c b/gcc/testsuite/gcc.target/powerpc/cfuged-1.c new file mode 100644 index 00000000000..83bf2ae1499 --- /dev/null +++ b/gcc/testsuite/gcc.target/powerpc/cfuged-1.c @@ -0,0 +1,50 @@ +/* { dg-do run } */ +/* { dg-require-effective-target lp64 } */ +/* { dg-require-effective-target powerpc_future_hw } */ +/* { dg-options "-mdejagnu-cpu=future" } */ + +extern void abort (void); + +unsigned long long int +do_cfuged (unsigned long long int source, unsigned long long int mask) +{ + return __builtin_cfuged (source, mask); +} + +int main (int argc, char *argv []) +{ + unsigned long long int sources [4], masks [4]; + unsigned long long int results [4][4] = { + /* sources[0] with each of masks [0 .. 3] */ + {0x7e3ca5f0ll, 0xa5f07e3cll, 0xaf7350ecll, 0x50ecaf73ll }, + /* sources[1] with each of masks [0 .. 3] */ + { 0xa5f07e3cll, 0x7e3ca5f0ll, 0x73afec50ll, 0xec5073afll }, + /* sources[2] with each of masks [0 .. 3] */ + { 0xf07e3ca5ll, 0x3ca5f07ell, 0x3af7c50ell, 0xc50e3af7ll }, + /* sources[3] with each of masks [0 .. 3] */ + { 0xe7c35a0fll, 0x5a0fe7c3ll, 0x50ecaf73ll, 0xaf7350ecll }, + }; + + sources[0] = 0xa5f07e3cll; + sources[1] = 0x7e3ca5f0ll; + sources[2] = 0x3ca5f07ell; + sources[3] = 0x5a0fe7c3ll; + + masks[0] = 0xffff0000ll; + masks[1] = 0x0000ffffll; + masks[2] = 0x0f0f0f0fll; + masks[3] = 0xf0f0f0f0ll; + + unsigned long long int result; + + for (int i = 0; i < 4; i++) + { + for (int j = 0; j < 4; j++) + { + if (do_cfuged (sources[i], masks[j]) != results [i][j]) + abort (); + } + } + + return 0; +} -- 2.17.1