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Strip target_clones in copy attribute (PR lto/90500).

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2019-05-22  Martin Liska  <mliska@suse.cz>

	PR lto/90500
	* c-attribs.c (handle_copy_attribute): Do not copy
	target_clones attribute.
2019-05-22  Martin Liska  <mliska@suse.cz>

	PR lto/90500
	* gcc.target/i386/pr90500-1.c: Make the test-case valid
	now.
2019-05-22  Martin Liska  <mliska@suse.cz>

	PR lto/90500
	* doc/extend.texi: Document the change.

From-SVN: r271504
This commit is contained in:
Martin Liska 2019-05-22 09:45:17 +02:00 committed by Martin Liska
parent a8aa828b6e
commit 6d86ddc4d6
6 changed files with 22 additions and 4 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2019-05-22 Martin Liska <mliska@suse.cz>
PR lto/90500
* doc/extend.texi: Document the change.
2019-05-22 Richard Biener <rguenther@suse.de>
PR tree-optimization/90450

6
gcc/c-family/ChangeLog
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@ -1,3 +1,9 @@
2019-05-22 Martin Liska <mliska@suse.cz>
PR lto/90500
* c-attribs.c (handle_copy_attribute): Do not copy
target_clones attribute.
2019-05-21 Eric Botcazou <ebotcazou@adacore.com>
* c-ada-spec.h (enum cpp_operation): Add IS_ASSIGNMENT_OPERATOR.

3
gcc/c-family/c-attribs.c
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@ -2486,7 +2486,8 @@ handle_copy_attribute (tree *node, tree name, tree args,
|| is_attribute_p ("noinline", atname)
|| is_attribute_p ("visibility", atname)
|| is_attribute_p ("weak", atname)
|| is_attribute_p ("weakref", atname))
|| is_attribute_p ("weakref", atname)
|| is_attribute_p ("target_clones", atname))
continue;
/* Attribute leaf only applies to extern functions.

3
gcc/doc/extend.texi
View File

@ -2749,7 +2749,8 @@ or variable) must match the kind of symbol to which the argument refers.
The @code{copy} attribute copies only syntactic and semantic attributes
but not attributes that affect a symbol's linkage or visibility such as
@code{alias}, @code{visibility}, or @code{weak}. The @code{deprecated}
attribute is also not copied. @xref{Common Type Attributes}.
and @code{target_clones} attribute are also not copied.
@xref{Common Type Attributes}.
@xref{Common Variable Attributes}.
For example, the @var{StrongAlias} macro below makes use of the @code{alias}

6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2019-05-22 Martin Liska <mliska@suse.cz>
PR lto/90500
* gcc.target/i386/pr90500-1.c: Make the test-case valid
now.
2019-05-22 Richard Biener <rguenther@suse.de>
* gcc.dg/tree-ssa/ssa-lim-13.c: New testcase.

3
gcc/testsuite/gcc.target/i386/pr90500-1.c
View File

@ -3,6 +3,5 @@
/* { dg-require-ifunc "" } */
__attribute__((target_clones("arch=haswell", "default"))) int __tanh() {}
__typeof(__tanh) tanhf64 __attribute__((alias("__tanh")))/* { dg-error "clones for .target_clones. attribute cannot be created" } */
/* { dg-message "'target_clones' cannot be combined with 'alias' attribute" "" { target *-*-* } .-1 } */
__typeof(__tanh) tanhf64 __attribute__((alias("__tanh")))
__attribute__((__copy__(__tanh)));