From: Evgeny Stupachenko <evstupac@gmail.com>
Date: Fri, 22 Jul 2016 15:00:42 +0000 (+0000)
Subject: ipa-cp.c (determine_versionability): Do not create constprop clones, when target_clon... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=58b3986e3458ed69301e4128fd704598ad01cb89;p=gcc.git

ipa-cp.c (determine_versionability): Do not create constprop clones, when target_clones attribute is set.

2016-07-22  Evgeny Stupachenko  <evstupac@gmail.com>

gcc/
	* ipa-cp.c (determine_versionability): Do not create constprop clones,
	when target_clones attribute is set.
gcc/testsuite/
	* gcc.target/i386/mvc8.c: New test.

From-SVN: r238645
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4f67430ec6f..8eb011ccbf3 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-07-22  Evgeny Stupachenko  <evstupac@gmail.com>
+
+	* ipa-cp.c (determine_versionability): Do not create constprop clones,
+	when target_clones attribute is set.
+
 2016-07-22  Bin Cheng  <bin.cheng@arm.com>
 
 	* common.opt (funsafe-loop-optimizations): Mark ignore.
diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c
index 4b7f6bbf31c..5b6cb9a143f 100644
--- a/gcc/ipa-cp.c
+++ b/gcc/ipa-cp.c
@@ -533,6 +533,13 @@ determine_versionability (struct cgraph_node *node,
 	 coexist, but that may not be worth the effort.  */
       reason = "function has SIMD clones";
     }
+  else if (lookup_attribute ("target_clones", DECL_ATTRIBUTES (node->decl)))
+    {
+      /* Ideally we should clone the target clones themselves and create
+	 copies of them, so IPA-cp and target clones can happily
+	 coexist, but that may not be worth the effort.  */
+      reason = "function target_clones attribute";
+    }
   /* Don't clone decls local to a comdat group; it breaks and for C++
      decloned constructors, inlining is always better anyway.  */
   else if (node->comdat_local_p ())
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7cef33787ad..0a48a17c714 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2016-07-22  Evgeny Stupachenko  <evstupac@gmail.com>
+
+	* gcc.target/i386/mvc8.c: New test.
+
 2016-07-22  Bin Cheng  <bin.cheng@arm.com>
 
 	* gcc.dg/tree-ssa/pr19210-1.c: Refine test strings.
diff --git a/gcc/testsuite/gcc.target/i386/mvc8.c b/gcc/testsuite/gcc.target/i386/mvc8.c
new file mode 100644
index 00000000000..97d7941a5ab
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/mvc8.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O3 -fno-inline" } */
+/* { dg-final { scan-assembler-not "constprop" } } */
+__attribute__((target_clones("arch=core-avx2","arch=slm","default")))
+void foo (float *a, int b) {
+    *a = (float)b;
+}
+float a;
+int main() {
+  int i;
+  for (i = 0; i < 1024; i++)
+    foo (&a, 5);
+}