From: YunQiang Su <syq@debian.org>
Date: Mon, 13 May 2024 06:15:38 +0000 (+0800)
Subject: Revert "MIPS: Support constraint 'w' for MSA instruction"
X-Git-Tag: basepoints/gcc-16~9160
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c6dd4b0973738ce43e76b468a002ab5eb58aaf4;p=thirdparty%2Fgcc.git

Revert "MIPS: Support constraint 'w' for MSA instruction"

This reverts commit 9ba01240864ac446052d97692e2199539b7c76d8.

It is not needed at all:
  asm volatile ("fmadd.d %w0, %1, %2" : "+f"(a) : "f"(b), "f"(c))
is OK for us.
---

diff --git a/gcc/config/mips/constraints.md b/gcc/config/mips/constraints.md
index f5c88179038..a96028dd746 100644
--- a/gcc/config/mips/constraints.md
+++ b/gcc/config/mips/constraints.md
@@ -29,9 +29,6 @@
 (define_register_constraint "f" "TARGET_HARD_FLOAT ? FP_REGS : NO_REGS"
   "A floating-point register (if available).")
 
-(define_register_constraint "w" "ISA_HAS_MSA ? FP_REGS : NO_REGS"
-  "A MIPS SIMD register (if available).")
-
 (define_register_constraint "h" "NO_REGS"
   "Formerly the @code{hi} register.  This constraint is no longer supported.")
 
diff --git a/gcc/testsuite/gcc.target/mips/msa-inline-asm.c b/gcc/testsuite/gcc.target/mips/msa-inline-asm.c
deleted file mode 100644
index bdf6816ab3b..00000000000
--- a/gcc/testsuite/gcc.target/mips/msa-inline-asm.c
+++ /dev/null
@@ -1,9 +0,0 @@
-/* { dg-do compile } */
-/* { dg-options "-mno-mips16 -mfp64 -mhard-float -mmsa" } */
-
-double
-f(double a, double b, double c) {
-  asm volatile ("fmadd.d %w0, %w1, %w2" : "+w"(a): "w"(b), "w"(c));
-  return a;
-}
-/* { dg-final { scan-assembler "fmadd.d \\\$w0, \\\$w\[0-9\]*, \\\$w\[0-9\]*" } }  */