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| author | Bill Schmidt <wschmidt@linux.ibm.com> | 2019-05-30 18:13:06 +0000 |
|---|---|---|
| committer | William Schmidt <wschmidt@gcc.gnu.org> | 2019-05-30 18:13:06 +0000 |
| commit | ed383d79ee753208f0df0cdad55c9cbfb90178d6 (patch) | |
| tree | 01cd0e7fc69e8f2c572508fb2b052e8a397e8b14 /gcc | |
| parent | 93f096795b3f15dc9e628e1fa2700625092fe433 (diff) | |
| download | gcc-ed383d79ee753208f0df0cdad55c9cbfb90178d6.zip gcc-ed383d79ee753208f0df0cdad55c9cbfb90178d6.tar.gz gcc-ed383d79ee753208f0df0cdad55c9cbfb90178d6.tar.bz2 | |
constraints.md (eI): New constraint.
2019-05-30 Bill Schmidt <wschmidt@linux.ibm.com>
Michael Meissner <meissner@linux.ibm.com>
* config/rs6000/constraints.md (eI): New constraint.
* config/rs6000/predicates.md (cint34_operand): New predicate.
* config/rs6000/rs6000.h (SIGNED_16BIT_OFFSET_P): New #define.
(SIGNED_34BIT_OFFSET_P): Likewise.
* doc/md.texi (eI): Document constraint.
Co-Authored-By: Michael Meissner <meissner@linux.ibm.com>
From-SVN: r271787
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/config/rs6000/constraints.md | 5 | ||||
| -rw-r--r-- | gcc/config/rs6000/predicates.md | 10 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.h | 14 | ||||
| -rw-r--r-- | gcc/doc/md.texi | 3 |
5 files changed, 41 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index caee629..20099e9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2019-05-30 Bill Schmidt <wschmidt@linux.ibm.com> + Michael Meissner <meissner@linux.ibm.com> + + * config/rs6000/constraints.md (eI): New constraint. + * config/rs6000/predicates.md (cint34_operand): New predicate. + * config/rs6000/rs6000.h (SIGNED_16BIT_OFFSET_P): New #define. + (SIGNED_34BIT_OFFSET_P): Likewise. + * doc/md.texi (eI): Document constraint. + 2019-05-30 Sylvia Taylor <sylvia.taylor@arm.com> * config/aarch64/aarch64-sve.md (*fabd<mode>3): New. diff --git a/gcc/config/rs6000/constraints.md b/gcc/config/rs6000/constraints.md index fd8be34..8004a92 100644 --- a/gcc/config/rs6000/constraints.md +++ b/gcc/config/rs6000/constraints.md @@ -210,6 +210,11 @@ (and (match_code "const_int") (match_test "((- (unsigned HOST_WIDE_INT) ival) + 0x8000) < 0x10000"))) +;; 34-bit signed integer constant +(define_constraint "eI" + "34-bit constant integer that can be loaded with PADDI" + (match_operand 0 "cint34_operand")) + ;; Floating-point constraints. These two are defined so that insn ;; length attributes can be calculated exactly. diff --git a/gcc/config/rs6000/predicates.md b/gcc/config/rs6000/predicates.md index 2643f1a..a578e0f 100644 --- a/gcc/config/rs6000/predicates.md +++ b/gcc/config/rs6000/predicates.md @@ -302,6 +302,16 @@ (and (match_code "const_int") (match_test "IN_RANGE (INTVAL (op), 0, 15)"))) +;; Return 1 if op is a 34-bit constant integer. +(define_predicate "cint34_operand" + (match_code "const_int") +{ + if (!TARGET_PREFIXED_ADDR) + return 0; + + return SIGNED_34BIT_OFFSET_P (INTVAL (op), 0); +}) + ;; Return 1 if op is a register that is not special. ;; Disallow (SUBREG:SF (REG:SI)) and (SUBREG:SI (REG:SF)) on VSX systems where ;; you need to be careful in moving a SFmode to SImode and vice versa due to diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h index f50ae94..8119c66 100644 --- a/gcc/config/rs6000/rs6000.h +++ b/gcc/config/rs6000/rs6000.h @@ -2502,3 +2502,17 @@ extern GTY(()) tree rs6000_builtin_decls[RS6000_BUILTIN_COUNT]; #if (GCC_VERSION >= 3000) #pragma GCC poison TARGET_FLOAT128 OPTION_MASK_FLOAT128 MASK_FLOAT128 #endif + +/* Whether a given VALUE is a valid 16- or 34-bit signed offset. EXTRA is the + amount that we can't touch at the high end of the range (typically if the + address is split into smaller addresses, the extra covers the addresses + which might be generated when the insn is split). */ +#define SIGNED_16BIT_OFFSET_P(VALUE, EXTRA) \ + IN_RANGE (VALUE, \ + -(HOST_WIDE_INT_1 << 15), \ + (HOST_WIDE_INT_1 << 15) - 1 - (EXTRA)) + +#define SIGNED_34BIT_OFFSET_P(VALUE, EXTRA) \ + IN_RANGE (VALUE, \ + -(HOST_WIDE_INT_1 << 33), \ + (HOST_WIDE_INT_1 << 33) - 1 - (EXTRA)) diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi index db9c210..775b8f5 100644 --- a/gcc/doc/md.texi +++ b/gcc/doc/md.texi @@ -3367,6 +3367,9 @@ Zero @item P Constant whose negation is a signed 16-bit constant +@item eI +Signed 34-bit integer constant if prefixed instructions are supported. + @item G Floating point constant that can be loaded into a register with one instruction per word |