https://gcc.gnu.org/g:2cd8dfd7d599ad6205e40c4e57275ce6ebd073aa

commit r15-706-g2cd8dfd7d599ad6205e40c4e57275ce6ebd073aa
Author: Kewen Lin <li...@linux.ibm.com>
Date:   Mon May 20 21:01:07 2024 -0500

    rs6000: Remove useless entries in rreg
    
    When I was working on a trial patch to get rid of TFmode,
    I noticed that mode attribute rreg only gets used for mode
    iterator SFDF, it means that only SF and DF key-value pairs
    are useful, the other are useless, so this patch is to clean
    up them.
    
    gcc/ChangeLog:
    
            * config/rs6000/rs6000.md (mode attribute rreg): Remove useless
            entries with modes TF, TD, V4SF and V2DF.

Diff:
---
 gcc/config/rs6000/rs6000.md | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index ac5651d7420c..7d0019ab410a 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -729,11 +729,7 @@
                        (DI "Y")])
 
 (define_mode_attr rreg [(SF   "f")
-                       (DF   "wa")
-                       (TF   "f")
-                       (TD   "f")
-                       (V4SF "wa")
-                       (V2DF "wa")])
+                       (DF   "wa")])
 
 (define_mode_attr rreg2 [(SF   "f")
                         (DF   "d")])

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