Disallow siball when calling ifunc functions with PIC register so that
PIC register can be restored.
gcc/
PR target/105960
* config/i386/i386.cc (ix86_function_ok_for_sibcall): Return
false if PIC register is used when calling ifunc functions.
gcc/testsuite/
PR target/105960
* gcc.target/i386/pr105960.c: New test.
(cherry picked from commit
fe9765c0b97e6b4ce2cd226631d329fc05ba2aa5)
}
}
+ if (decl && ix86_use_pseudo_pic_reg ())
+ {
+ /* When PIC register is used, it must be restored after ifunc
+ function returns. */
+ cgraph_node *node = cgraph_node::get (decl);
+ if (node && node->ifunc_resolver)
+ return false;
+ }
+
/* Otherwise okay. That also includes certain types of indirect calls. */
return true;
}
--- /dev/null
+/* { dg-do compile } */
+/* { dg-require-ifunc "" } */
+/* { dg-options "-O2 -fpic" } */
+
+__attribute__((target_clones("default","fma")))
+static inline double
+expfull_ref(double x)
+{
+ return __builtin_pow(x, 0.1234);
+}
+
+double
+exp_ref(double x)
+{
+ return expfull_ref(x);
+}
+
+/* { dg-final { scan-assembler "jmp\[ \t\]*expfull_ref@PLT" { target { ! ia32 } } } } */
+/* { dg-final { scan-assembler "call\[ \t\]*expfull_ref@PLT" { target ia32 } } } */