With the SPE ABI, if we wrap GPRs we need to handle the upper half of the
extended 64-bit registers as well, which we cannot easily do. So, this
patch disables separate shrink-wrapping for the SPE ABI.
Tested on powerpc64-linux {-m32,-m64}; also tested on the testcase (I
finally managed to build a config that fails). Committing to trunk.
Segher
2016-11-02 Segher Boessenkool <seg...@kernel.crashing.org>
PR target/78168
* config/r6000/rs6000.c (rs6000_get_separate_components): Return
NULL if TARGET_SPE_ABI.
---
gcc/config/rs6000/rs6000.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index f9e4739..e5a6166 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -27633,6 +27633,9 @@ rs6000_get_separate_components (void)
if (WORLD_SAVE_P (info))
return NULL;
+ if (TARGET_SPE_ABI)
+ return NULL;
+
sbitmap components = sbitmap_alloc (32);
bitmap_clear (components);
--
1.9.3
