target/arm: Fix sign of sve_cmpeq_ppzw/sve_cmpne_ppzw

The normal vector element is sign-extended before
comparing with the wide vector element.

Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 20180801123111.3595-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit df4e001093988544d09887122ae824f18ba55c68)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index 54795c91945cd127ecdfa156d6d64dc647bdc439..9bd0694d55e24f1e24bfcf9f624fe16763fad36d 100644 (file)
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -2436,13 +2436,13 @@ uint32_t HELPER(NAME)(void *vd, void *vn, void *vm, void *vg, uint32_t desc) \
 #define DO_CMP_PPZW_S(NAME, TYPE, TYPEW, OP) \
     DO_CMP_PPZW(NAME, TYPE, TYPEW, OP, H1_4, 0x1111111111111111ull)
 
-DO_CMP_PPZW_B(sve_cmpeq_ppzw_b, uint8_t,  uint64_t, ==)
-DO_CMP_PPZW_H(sve_cmpeq_ppzw_h, uint16_t, uint64_t, ==)
-DO_CMP_PPZW_S(sve_cmpeq_ppzw_s, uint32_t, uint64_t, ==)
+DO_CMP_PPZW_B(sve_cmpeq_ppzw_b, int8_t,  uint64_t, ==)
+DO_CMP_PPZW_H(sve_cmpeq_ppzw_h, int16_t, uint64_t, ==)
+DO_CMP_PPZW_S(sve_cmpeq_ppzw_s, int32_t, uint64_t, ==)
 
-DO_CMP_PPZW_B(sve_cmpne_ppzw_b, uint8_t,  uint64_t, !=)
-DO_CMP_PPZW_H(sve_cmpne_ppzw_h, uint16_t, uint64_t, !=)
-DO_CMP_PPZW_S(sve_cmpne_ppzw_s, uint32_t, uint64_t, !=)
+DO_CMP_PPZW_B(sve_cmpne_ppzw_b, int8_t,  uint64_t, !=)
+DO_CMP_PPZW_H(sve_cmpne_ppzw_h, int16_t, uint64_t, !=)
+DO_CMP_PPZW_S(sve_cmpne_ppzw_s, int32_t, uint64_t, !=)
 
 DO_CMP_PPZW_B(sve_cmpgt_ppzw_b, int8_t,   int64_t, >)
 DO_CMP_PPZW_H(sve_cmpgt_ppzw_h, int16_t,  int64_t, >)