* [PATCH] rs6000: Remove useless entries in rreg
@ 2024-05-08 6:33 Kewen.Lin
0 siblings, 0 replies; only message in thread
From: Kewen.Lin @ 2024-05-08 6:33 UTC (permalink / raw)
To: GCC Patches; +Cc: Segher Boessenkool, David Edelsohn, Peter Bergner
Hi,
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.
Bootstrapped and regtested on powerpc64-linux-gnu P8/P9 and
powerpc64le-linux-gnu P9 and P10.
I'm going to push this soon if no objections.
BR,
Kewen
-----
gcc/ChangeLog:
* config/rs6000/rs6000.md (mode attribute rreg): Remove useless
entries with modes TF, TD, V4SF and V2DF.
---
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 bc8bc6ab060..4b70b50edca 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -725,11 +725,7 @@ (define_mode_attr ptrm [(SI "m")
(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")])
--
2.39.1
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