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| author | Claudiu Zissulescu <claziss@gmail.com> | 2025-11-21 10:46:56 +0200 |
|---|---|---|
| committer | Claudiu Zissulescu <claudiu.zissulescu-ianculescu@oracle.com> | 2025-11-21 10:52:19 +0200 |
| commit | 56595464ff06ae7bdba7848f2ae583f2cac5dcac (patch) | |
| tree | 0045c6aacaa0fd6c2c6749775681b0216c7ae2cc | |
| parent | ebabae605093e5a31c37ef6e5e3e809f13501f70 (diff) | |
arc: Use correct input operand for *extvsi_n_0 define_insn_and_split
Correct the split condition of the instruction to happen after
reload. Relax operand 1 constrain too.
gcc/ChangeLog:
* config/arc/arc.md: Modify define_insn_and_split "*extvsi_n_0"
gcc/testsuite/ChangeLog:
* gcc.target/arc/extvsi-3.c: New test.
Co-authored-by: Michiel Derhaeg <michiel@synopsys.com>
Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>
| -rw-r--r-- | gcc/config/arc/arc.md | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/arc/extvsi-3.c | 14 |
2 files changed, 17 insertions, 3 deletions
diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md index 8f7e5373fdf..55be6ce74da 100644 --- a/gcc/config/arc/arc.md +++ b/gcc/config/arc/arc.md @@ -6286,15 +6286,15 @@ archs4x, archs4xd" (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") + (sign_extract:SI (match_operand:SI 1 "register_operand" "r") (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))) + "&& reload_completed" +[(set (match_dup 0) (and:SI (match_dup 1) (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)))] { diff --git a/gcc/testsuite/gcc.target/arc/extvsi-3.c b/gcc/testsuite/gcc.target/arc/extvsi-3.c new file mode 100644 index 00000000000..2a466f90ed0 --- /dev/null +++ b/gcc/testsuite/gcc.target/arc/extvsi-3.c @@ -0,0 +1,14 @@ +/* { dg-do compile } */ +/* { dg-skip-if "avoid conflicts with -mcpu options" { *-*-* } { "-mcpu=*" } { "-mcpu=em" } } */ +/* { dg-options "-O2 -mcpu=em" } */ +struct S { int a : 5; }; + +/* An extra parameter is added to ensure a different register is used for input and output. */ +int foo (int unused, struct S p) +{ + return p.a; +} + +/* { dg-final { scan-assembler "and\\s+r0,r1,31" } } */ +/* { dg-final { scan-assembler "xor\\s+r0,r0,16" } } */ +/* { dg-final { scan-assembler "sub\\s+r0,r0,16" } } */ |