On Thu, 18 May 2023 at 16:37, Joern Rennecke <[email protected]> wrote
in https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618928.html :
>
> This breaks building libstdc++-v3 for
> -march=rv32imafdcv_zicsr_zifencei_zba_zbb_zbc_zbs_zve32f_zve32x_zve64d_zve64f_zve64x_zvl128b_zvl32b_zvl64b
> -mabi=ilp32f .
Sorry, I forgot the ChangeLog entry for my patch and missed the [v2]
part of the subject.
2023-05-18 Joern Rennecke <[email protected]>
gcc/ChangeLog:
* config/riscv/constraints.md (DsS, DsD): Restore agreement
with shiftm1 mode attribute.
diff --git a/gcc/config/riscv/constraints.md b/gcc/config/riscv/constraints.md
index c448e6b37e9..44525b2da49 100644
--- a/gcc/config/riscv/constraints.md
+++ b/gcc/config/riscv/constraints.md
@@ -65,13 +65,13 @@
"@internal
31 immediate"
(and (match_code "const_int")
- (match_test "ival == 31")))
+ (match_test "(ival & 31) == 31")))
(define_constraint "DsD"
"@internal
63 immediate"
(and (match_code "const_int")
- (match_test "ival == 63")))
+ (match_test "(ival & 63) == 63")))
(define_constraint "DbS"
"@internal"
