* gcc/config/rs6000/rs6000.c (rs6000_override_options)
Set AltiVec ABI and vrsave as default for ppc64 linux. (init_cumulative_args): Post error, if try to return value in AltiVec register without enable AltiVec. (function_arg_advance): Ditto for passing arguments. From-SVN: r77642
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7537fc907c
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6d0ef01e47
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@ -1,3 +1,11 @@
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2004-02-11 Hartmut Penner <hpenner@de.ibm.com>
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* gcc/config/rs6000/rs6000.c (rs6000_override_options)
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Set AltiVec ABI and vrsave as default for ppc64 linux.
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(init_cumulative_args): Post error, if try to return
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value in AltiVec register without enable AltiVec.
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(function_arg_advance): Ditto for passing arguments.
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2004-02-11 Richard Sandiford <rsandifo@redhat.com>
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2004-02-11 Richard Sandiford <rsandifo@redhat.com>
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* emit-rtl.c (mark_label_nuses): Check that a LABEL_REF refers to
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* emit-rtl.c (mark_label_nuses): Check that a LABEL_REF refers to
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@ -836,6 +836,13 @@ rs6000_override_options (const char *default_cpu)
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rs6000_long_double_type_size = size;
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rs6000_long_double_type_size = size;
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}
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}
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/* Set Altivec ABI as default for powerpc64 linux. */
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if (TARGET_ELF && TARGET_64BIT)
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{
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rs6000_altivec_abi = 1;
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rs6000_altivec_vrsave = 1;
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}
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/* Handle -mabi= options. */
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/* Handle -mabi= options. */
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rs6000_parse_abi_options ();
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rs6000_parse_abi_options ();
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@ -3836,6 +3843,16 @@ init_cumulative_args (CUMULATIVE_ARGS *cum, tree fntype,
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fprintf (stderr, " proto = %d, nargs = %d\n",
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fprintf (stderr, " proto = %d, nargs = %d\n",
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cum->prototype, cum->nargs_prototype);
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cum->prototype, cum->nargs_prototype);
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}
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}
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if (fntype
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&& !TARGET_ALTIVEC
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&& TARGET_ALTIVEC_ABI
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&& ALTIVEC_VECTOR_MODE (TYPE_MODE (TREE_TYPE (fntype))))
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{
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error ("Cannot return value in vector register because"
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" altivec instructions are disabled, use -maltivec"
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" to enable them.");
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}
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}
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}
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/* If defined, a C expression which determines whether, and in which
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/* If defined, a C expression which determines whether, and in which
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@ -3928,8 +3945,13 @@ function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode,
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if (TARGET_ALTIVEC_ABI && ALTIVEC_VECTOR_MODE (mode))
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if (TARGET_ALTIVEC_ABI && ALTIVEC_VECTOR_MODE (mode))
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{
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{
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if (USE_ALTIVEC_FOR_ARG_P (cum, mode, type, named))
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if (USE_ALTIVEC_FOR_ARG_P (cum, mode, type, named))
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{
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cum->vregno++;
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cum->vregno++;
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if (!TARGET_ALTIVEC)
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error ("Cannot pass argument in vector register because"
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" altivec instructions are disabled, use -maltivec"
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" to enable them.");
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}
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/* PowerPC64 Linux and AIX allocates GPRs for a vector argument
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/* PowerPC64 Linux and AIX allocates GPRs for a vector argument
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even if it is going to be passed in a vector register.
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even if it is going to be passed in a vector register.
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Darwin does the same for variable-argument functions. */
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Darwin does the same for variable-argument functions. */
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@ -1,3 +1,7 @@
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2004-02-11 Hartmut Penner <hpenner@de.ibm.com>
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* gcc.dg/ppc64-abi-3.c: New test.
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2004-02-10 Paolo Bonzini <bonzini@gnu.org>
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2004-02-10 Paolo Bonzini <bonzini@gnu.org>
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PR c/14092
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PR c/14092
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@ -0,0 +1,28 @@
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/* { dg-do compile { target powerpc64-*-linux* } } */
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/* { dg-options "-Wall" } */
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/* Testcase to check for ABI compliance of parameter passing
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for the PowerPC64 ABI. */
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typedef int __attribute__((mode(V4SI))) v4si;
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typedef int __attribute__((mode(V2SI))) v2si;
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v4si
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f(v4si v)
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{ /* { dg-error "altivec instructions are disabled" } */
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return v;
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}
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v2si
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g(v2si v)
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{
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return v;
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}
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int
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main()
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{
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v4si v;
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v2si w;
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v = f (v); /* { dg-error "altivec instructions are disabled" } */
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w = g (w);
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}
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