Thist patch merges the safe-indirect-jump-1.c and -8.c testcases,
since they do the same thing. On the 64-bit and AIX ABIs the indirect
call is not a sibcall, since there is code generated after the call
(the restore of r2). On the 32-bit non-AIX ABIs it is a sibcall.
Tested on powerpc64-linux {-m32,-m64}, and on powerpc-ibm-aix7.1.3.0 .
Is this okay for trunk and 7 branch?
Segher
2018-01-26 Segher Boessenkool <seg...@kernel.crashing.org>
gcc/testsuite/
* gcc.target/powerpc/safe-indirect-jump-1.c: Build on all targets.
Make expected output depend on whether we expect sibcalls or not.
* gcc.target/powerpc/safe-indirect-jump-8.c: Delete (merged into
safe-indirect-jump-1.c).
---
gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c | 10 ++++++++--
gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-8.c | 16 ----------------
2 files changed, 8 insertions(+), 18 deletions(-)
delete mode 100644 gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-8.c
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c
b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c
index 99cfab2..d1ab83a 100644
--- a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c
+++ b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-1.c
@@ -1,4 +1,4 @@
-/* { dg-do compile { target { lp64 } } } */
+/* { dg-do compile } */
/* { dg-additional-options "-mno-speculate-indirect-jumps" } */
/* Test for deliberate misprediction of indirect calls. */
@@ -11,4 +11,10 @@ int bar ()
}
/* { dg-final { scan-assembler "crset 2" } } */
-/* { dg-final { scan-assembler "beqctrl-" } } */
+
+/* The AIX and ELFv2 ABIs don't allow a sibcall here. */
+/* { dg-final { scan-assembler "beqctrl-" { target { lp64 || { powerpc*-*-aix*
} } } } } */
+
+/* The other ABIs do allow a sibcall. */
+/* { dg-final { scan-assembler "beqctr-" { target { ilp32 && !powerpc*-*-aix*
} } } } */
+/* { dg-final { scan-assembler {b \$} { target { ilp32 && !powerpc*-*-aix* } }
} } */
diff --git a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-8.c
b/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-8.c
deleted file mode 100644
index 0a6f231..0000000
--- a/gcc/testsuite/gcc.target/powerpc/safe-indirect-jump-8.c
+++ /dev/null
@@ -1,16 +0,0 @@
-/* { dg-do compile { target { ilp32 } } } */
-/* { dg-skip-if "" { powerpc*-*-aix* } } */
-/* { dg-additional-options "-O2 -mno-speculate-indirect-jumps" } */
-
-/* Test for deliberate misprediction of -m32 sibcalls. */
-
-extern int (*f)();
-
-int bar ()
-{
- return (*f) ();
-}
-
-/* { dg-final { scan-assembler "crset 2" } } */
-/* { dg-final { scan-assembler "beqctr-" } } */
-/* { dg-final { scan-assembler {b \$} } } */
--
1.8.3.1
