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* [PATCH] rs6000: Remove useless operands[3]
@ 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,

As shown, three uses of operands[3] are totally useless, so
this patch is to remove them to avoid any confusion.

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 (@ieee_128bit_vsx_neg<IEEE128>2): Remove
	the use of operands[3].
	(@ieee_128bit_vsx_neg<IEEE128>2): Likewise.
	(*ieee_128bit_vsx_nabs<mode>2): Likewise.
---
 gcc/config/rs6000/rs6000.md | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index 4b70b50edca..daae2f81061 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -9256,7 +9256,6 @@ (define_insn_and_split "@ieee_128bit_vsx_neg<mode>2"
   if (GET_CODE (operands[2]) == SCRATCH)
     operands[2] = gen_reg_rtx (V16QImode);

-  operands[3] = gen_reg_rtx (V16QImode);
   emit_insn (gen_ieee_128bit_negative_zero (operands[2]));
 }
   [(set_attr "length" "8")
@@ -9285,7 +9284,6 @@ (define_insn_and_split "@ieee_128bit_vsx_abs<mode>2"
   if (GET_CODE (operands[2]) == SCRATCH)
     operands[2] = gen_reg_rtx (V16QImode);

-  operands[3] = gen_reg_rtx (V16QImode);
   emit_insn (gen_ieee_128bit_negative_zero (operands[2]));
 }
   [(set_attr "length" "8")
@@ -9317,7 +9315,6 @@ (define_insn_and_split "*ieee_128bit_vsx_nabs<mode>2"
   if (GET_CODE (operands[2]) == SCRATCH)
     operands[2] = gen_reg_rtx (V16QImode);

-  operands[3] = gen_reg_rtx (V16QImode);
   emit_insn (gen_ieee_128bit_negative_zero (operands[2]));
 }
   [(set_attr "length" "8")
--
2.39.1

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