===================================================================
@@ -6995,6 +6995,15 @@ mips_function_ok_for_sibcall (tree decl,
&& mips_call_may_need_jalx_p (decl))
return false;
+ /* Sibling calls should not prevent lazy binding. Lazy-binding stubs
+ require $gp to be valid on entry, so sibcalls can only use stubs
+ if $gp is call-clobbered. */
+ if (decl
+ && TARGET_CALL_SAVED_GP
+ && !TARGET_ABICALLS_PIC0
+ && !targetm.binds_local_p (decl))
+ return false;
+
/* Otherwise OK. */
return true;
}
===================================================================
@@ -1,10 +1,12 @@
-/* { dg-options "-mrelax-pic-calls -mshared -foptimize-sibling-calls" } */
+/* { dg-options "-mrelax-pic-calls -mshared -foptimize-sibling-calls -mabi=32" } */
/* { dg-skip-if "requires -foptimize-sibling-calls" { *-*-* } { "-O0" } { "" } } */
/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,normal\n1:\tjalr\t" } } */
/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,normal2\n1:\tjalr\t" } } */
/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,staticfunc\n1:\tjalr\t" } } */
/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail\n1:\tjr\t" } } */
/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail2\n1:\tjr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail3\n1:\tjr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail4\n1:\tjr\t" } } */
__attribute__ ((noinline)) static void staticfunc () { asm (""); }
int normal ();
@@ -31,3 +33,17 @@ NOMIPS16 void g ()
{
tail2 ();
}
+
+__attribute__ ((visibility ("hidden"))) void tail3 ();
+
+NOMIPS16 void j ()
+{
+ tail3 ();
+}
+
+__attribute__ ((noinline)) static void tail4 () { asm (""); }
+
+NOMIPS16 void k ()
+{
+ tail4 ();
+}
===================================================================
@@ -0,0 +1,51 @@
+/* Like call-1.c, but for n32. We cannot use sibling calls for tail and tail2
+ in this case (PR target/57260). */
+/* { dg-options "-mrelax-pic-calls -mshared -foptimize-sibling-calls -mabi=n32" } */
+/* { dg-skip-if "requires -foptimize-sibling-calls" { *-*-* } { "-O0" } { "" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,normal\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,normal2\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,staticfunc\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail2\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail3\n1:\tjr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail4\n1:\tjr\t" } } */
+
+__attribute__ ((noinline)) static void staticfunc () { asm (""); }
+int normal ();
+void normal2 ();
+
+NOMIPS16 f (int *p)
+{
+ *p = normal ();
+ normal2 ();
+ staticfunc ();
+ return 1;
+}
+
+int tail ();
+
+NOMIPS16 h ()
+{
+ return tail ();
+}
+
+void tail2 ();
+
+NOMIPS16 void g ()
+{
+ tail2 ();
+}
+
+__attribute__ ((visibility ("hidden"))) void tail3 ();
+
+NOMIPS16 void j ()
+{
+ tail3 ();
+}
+
+__attribute__ ((noinline)) static void tail4 () { asm (""); }
+
+NOMIPS16 void k ()
+{
+ tail4 ();
+}
===================================================================
@@ -0,0 +1,50 @@
+/* Like call-5.c, but for n64. */
+/* { dg-options "-mrelax-pic-calls -mshared -foptimize-sibling-calls -mabi=64" } */
+/* { dg-skip-if "requires -foptimize-sibling-calls" { *-*-* } { "-O0" } { "" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,normal\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,normal2\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,staticfunc\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail2\n1:\tjalr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail3\n1:\tjr\t" } } */
+/* { dg-final { scan-assembler "\\.reloc\t1f,R_MIPS_JALR,tail4\n1:\tjr\t" } } */
+
+__attribute__ ((noinline)) static void staticfunc () { asm (""); }
+int normal ();
+void normal2 ();
+
+NOMIPS16 f (int *p)
+{
+ *p = normal ();
+ normal2 ();
+ staticfunc ();
+ return 1;
+}
+
+int tail ();
+
+NOMIPS16 h ()
+{
+ return tail ();
+}
+
+void tail2 ();
+
+NOMIPS16 void g ()
+{
+ tail2 ();
+}
+
+__attribute__ ((visibility ("hidden"))) void tail3 ();
+
+NOMIPS16 void j ()
+{
+ tail3 ();
+}
+
+__attribute__ ((noinline)) static void tail4 () { asm (""); }
+
+NOMIPS16 void k ()
+{
+ tail4 ();
+}