FP_ISA3 is exactly the same as SFDF, just a less obvious name.  So,
let's delete it.

Tested, committed, the works.


Segher


2022-06-09  Segher Boessenkool  <seg...@kernel.crashing.org>

        * config/rs6000/rs6000.md (FP_ISA3): Delete.
        (float<QHI:mode><FP_ISA3:mode>2): Rename to...
        (float<QHI:mode><SFDF:mode>2): ... this.  Adjust.
        (*float<QHI:mode><FP_ISA3:mode>2_internal): Rename to...
        (*float<QHI:mode><SFDF:mode>2_internal): ... this.  Adjust.
        (floatuns<QHI:mode><FP_ISA3:mode>2): Rename to...
        (floatuns<QHI:mode><SFDF:mode>2): ... this.  Adjust.
        (*floatuns<QHI:mode><FP_ISA3:mode>2_internal): Rename to...
        (*floatuns<QHI:mode><SFDF:mode>2_internal): ... this.  Adjust.
---
 gcc/config/rs6000/rs6000.md | 31 ++++++++++++++-----------------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 1c125f07e895..c55ee7e171a3 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -619,9 +619,6 @@ (define_mode_iterator FLOAT128 [(KF "TARGET_FLOAT128_TYPE")
 (define_mode_iterator SIGNBIT [(KF "FLOAT128_VECTOR_P (KFmode)")
                               (TF "FLOAT128_VECTOR_P (TFmode)")])
 
-; Iterator for ISA 3.0 supported floating point types
-(define_mode_iterator FP_ISA3 [SF DF])
-
 ; Which isa is needed for those float instructions?
 (define_mode_attr Fisa         [(SF "p8v")  (DF "*") (DI "*")])
 
@@ -6012,9 +6009,9 @@ (define_insn_and_split "*floatunssidf2_internal"
 ;; the vector registers, rather then loading up a GPR, doing a sign/zero
 ;; extension and then a direct move.
 
-(define_expand "float<QHI:mode><FP_ISA3:mode>2"
-  [(parallel [(set (match_operand:FP_ISA3 0 "vsx_register_operand")
-                  (float:FP_ISA3
+(define_expand "float<QHI:mode><SFDF:mode>2"
+  [(parallel [(set (match_operand:SFDF 0 "vsx_register_operand")
+                  (float:SFDF
                    (match_operand:QHI 1 "input_operand")))
              (clobber (match_scratch:DI 2))
              (clobber (match_scratch:DI 3))
@@ -6025,9 +6022,9 @@ (define_expand "float<QHI:mode><FP_ISA3:mode>2"
     operands[1] = rs6000_force_indexed_or_indirect_mem (operands[1]);
 })
 
-(define_insn_and_split "*float<QHI:mode><FP_ISA3:mode>2_internal"
-  [(set (match_operand:FP_ISA3 0 "vsx_register_operand" "=wa,wa,wa")
-       (float:FP_ISA3
+(define_insn_and_split "*float<QHI:mode><SFDF:mode>2_internal"
+  [(set (match_operand:SFDF 0 "vsx_register_operand" "=wa,wa,wa")
+       (float:SFDF
         (match_operand:QHI 1 "reg_or_indexed_operand" "v,r,Z")))
    (clobber (match_scratch:DI 2 "=v,wa,v"))
    (clobber (match_scratch:DI 3 "=X,r,X"))
@@ -6061,14 +6058,14 @@ (define_insn_and_split 
"*float<QHI:mode><FP_ISA3:mode>2_internal"
       emit_insn (gen_extend<QHI:mode>di2 (di, tmp));
     }
 
-  emit_insn (gen_floatdi<FP_ISA3:mode>2 (result, di));
+  emit_insn (gen_floatdi<SFDF:mode>2 (result, di));
   DONE;
 }
   [(set_attr "isa" "p9v,*,p9v")])
 
-(define_expand "floatuns<QHI:mode><FP_ISA3:mode>2"
-  [(parallel [(set (match_operand:FP_ISA3 0 "vsx_register_operand")
-                  (unsigned_float:FP_ISA3
+(define_expand "floatuns<QHI:mode><SFDF:mode>2"
+  [(parallel [(set (match_operand:SFDF 0 "vsx_register_operand")
+                  (unsigned_float:SFDF
                    (match_operand:QHI 1 "input_operand")))
              (clobber (match_scratch:DI 2))
              (clobber (match_scratch:DI 3))])]
@@ -6078,9 +6075,9 @@ (define_expand "floatuns<QHI:mode><FP_ISA3:mode>2"
     operands[1] = rs6000_force_indexed_or_indirect_mem (operands[1]);
 })
 
-(define_insn_and_split "*floatuns<QHI:mode><FP_ISA3:mode>2_internal"
-  [(set (match_operand:FP_ISA3 0 "vsx_register_operand" "=wa,wa,wa")
-       (unsigned_float:FP_ISA3
+(define_insn_and_split "*floatuns<QHI:mode><SFDF:mode>2_internal"
+  [(set (match_operand:SFDF 0 "vsx_register_operand" "=wa,wa,wa")
+       (unsigned_float:SFDF
         (match_operand:QHI 1 "reg_or_indexed_operand" "v,r,Z")))
    (clobber (match_scratch:DI 2 "=v,wa,wa"))
    (clobber (match_scratch:DI 3 "=X,r,X"))]
@@ -6107,7 +6104,7 @@ (define_insn_and_split 
"*floatuns<QHI:mode><FP_ISA3:mode>2_internal"
        }
     }
 
-  emit_insn (gen_floatdi<FP_ISA3:mode>2 (result, di));
+  emit_insn (gen_floatdi<SFDF:mode>2 (result, di));
   DONE;
 }
   [(set_attr "isa" "p9v,*,p9v")])
-- 
1.8.3.1

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