merged. On 5/25/21 6:45 PM, Geng Qi wrote:
gcc/ * config/csky/csky.md (cskyv2_sextend_ldbs): New insn.gcc/testsuite/ * gcc/testsuite/gcc.target/csky/ldbs.c: New. --- gcc/config/csky/csky.md | 10 ++++++++++ gcc/testsuite/gcc.target/csky/ldbs.c | 11 +++++++++++ 2 files changed, 21 insertions(+) create mode 100644 gcc/testsuite/gcc.target/csky/ldbs.c diff --git a/gcc/config/csky/csky.md b/gcc/config/csky/csky.md index c27d627..b980d4c 100644 --- a/gcc/config/csky/csky.md +++ b/gcc/config/csky/csky.md @@ -1533,6 +1533,7 @@ }" )+;; hi -> si(define_insn "extendhisi2" [(set (match_operand:SI 0 "register_operand" "=r") (sign_extend:SI (match_operand:HI 1 "register_operand" "r")))] @@ -1557,6 +1558,15 @@ "sextb %0, %1" )+(define_insn "*cskyv2_sextend_ldbs"+ [(set (match_operand:SI 0 "register_operand" "=r") + (sign_extend:SI (match_operand:QI 1 "csky_simple_mem_operand" "m")))] + "CSKY_ISA_FEATURE (E2)" + "ld.bs\t%0, %1" + [(set_attr "length" "4") + (set_attr "type" "load")] +) + ;; qi -> hi (define_insn "extendqihi2" [(set (match_operand:HI 0 "register_operand" "=r") diff --git a/gcc/testsuite/gcc.target/csky/ldbs.c b/gcc/testsuite/gcc.target/csky/ldbs.c new file mode 100644 index 0000000..27a0254 --- /dev/null +++ b/gcc/testsuite/gcc.target/csky/ldbs.c @@ -0,0 +1,11 @@ +/* { dg-do compile } */ +/* { dg-skip-if "" { *-*-* } { "-mcpu=ck801" "-march=ck801" } { "*" } } */ +/* { dg-csky-options "-O1" } */ + +int foo (signed char *pb) +{ + return *pb; +} + +/* { dg-final { scan-assembler "ld.bs" } } */ +
