When using GNU vector extensions, an access outside of the vector size
caused an ICE on s390. Fix this by aligning with the vec_extract
builtin, i.e., computing constant index modulo number of lanes.
Fixes testcase gcc.target/s390/pr89233.c.
Bootstrapped and tested on s390. OK for mainline?
gcc/ChangeLog:
* config/s390/vector.md: (*vec_extract) Fix.
Signed-off-by: Juergen Christ <jchr...@linux.ibm.com>
---
gcc/config/s390/vector.md | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/gcc/config/s390/vector.md b/gcc/config/s390/vector.md
index 7d1eb36e8446..deda5990a035 100644
--- a/gcc/config/s390/vector.md
+++ b/gcc/config/s390/vector.md
@@ -532,12 +532,14 @@
(match_operand:V 1 "nonmemory_operand" "v,v")
(parallel
[(match_operand:SI 2 "nonmemory_operand" "an,I")])))]
- "TARGET_VX
- && (!CONST_INT_P (operands[2])
- || UINTVAL (operands[2]) < GET_MODE_NUNITS (<V:MODE>mode))"
- "@
- vlgv<bhfgq>\t%0,%v1,%Y2
- vste<bhfgq>\t%v1,%0,%2"
+ "TARGET_VX"
+ {
+ if (CONST_INT_P (operands[2]))
+ operands[2] = GEN_INT (UINTVAL (operands[2]) & (GET_MODE_NUNITS
(<V:MODE>mode) - 1));
+ if (which_alternative == 0)
+ return "vlgv<bhfgq>\t%0,%v1,%Y2";
+ return "vste<bhfgq>\t%v1,%0,%2";
+ }
[(set_attr "op_type" "VRS,VRX")])
; vlgvb, vlgvh, vlgvf, vlgvg
--
2.39.3
