diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md index bf9f88eff047..d980876eff8f 100644 --- a/gcc/config/arc/arc.md +++ b/gcc/config/arc/arc.md @@ -6127,6 +6127,26 @@ archs4x, archs4xd" "" [(set_attr "length" "8")]) +(define_insn_and_split "*extvsi_n_0" + [(set (match_operand:SI 0 "register_operand" "=r") + (sign_extract:SI (match_operand:SI 1 "register_operand" "0") + (match_operand:QI 2 "const_int_operand") + (const_int 0)))] + "!TARGET_BARREL_SHIFTER + && IN_RANGE (INTVAL (operands[2]), 2, + (optimize_insn_for_size_p () ? 28 : 30))" + "#" + "&& 1" +[(set (match_dup 0) (and:SI (match_dup 0) (match_dup 3))) + (set (match_dup 0) (xor:SI (match_dup 0) (match_dup 4))) + (set (match_dup 0) (minus:SI (match_dup 0) (match_dup 4)))] +{ + int tmp = INTVAL (operands[2]); + operands[3] = GEN_INT (~(HOST_WIDE_INT_M1U << tmp)); + operands[4] = GEN_INT (HOST_WIDE_INT_1U << (tmp - 1)); +} + [(set_attr "length" "14")]) + (define_insn_and_split "rotlsi3_cnt1" [(set (match_operand:SI 0 "dest_reg_operand" "=r") (rotate:SI (match_operand:SI 1 "register_operand" "r") diff --git a/gcc/testsuite/gcc.target/arc/extvsi-1.c b/gcc/testsuite/gcc.target/arc/extvsi-1.c new file mode 100644 index 000000000000..5ac6feafae30 --- /dev/null +++ b/gcc/testsuite/gcc.target/arc/extvsi-1.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -mcpu=em" } */ +struct S { int a : 5; }; + +int foo (struct S *p) +{ + return p->a; +} + +/* { dg-final { scan-assembler "msk_s\\s+r0,r0,4" } } */ +/* { dg-final { scan-assembler "xor\\s+r0,r0,16" } } */ +/* { dg-final { scan-assembler "sub\\s+r0,r0,16" } } */ +/* { dg-final { scan-assembler-not "add3\\s+r0,r2,r0" } } */ +/* { dg-final { scan-assembler-not "sext_s\\s+r0,r0" } } */ +/* { dg-final { scan-assembler-not "asr_s\\s+r0,r0" } } */ diff --git a/gcc/testsuite/gcc.target/arc/extvsi-2.c b/gcc/testsuite/gcc.target/arc/extvsi-2.c new file mode 100644 index 000000000000..953ea6a8b243 --- /dev/null +++ b/gcc/testsuite/gcc.target/arc/extvsi-2.c @@ -0,0 +1,12 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -mcpu=em" } */ + +int foo(int x) +{ + return (x<<27)>>27; +} + +/* { dg-final { scan-assembler "msk_s\\s+r0,r0,4" } } */ +/* { dg-final { scan-assembler "xor\\s+r0,r0,16" } } */ +/* { dg-final { scan-assembler "sub\\s+r0,r0,16" } } */ +/* { dg-final { scan-assembler-not "lp\\s+2f" } } */