Re: [PATCH v1] RISC-V: bitmanip: improve constant-loading for (1ULL << 31) in DImode

On Tue, May 24, 2022 at 3:57 PM Philipp Tomsich wrote: > > The SINGLE_BIT_MASK_OPERAND() is overly restrictive, triggering for > bits above 31 only (to side-step any issues with the negative SImode > value 0x8000). This moves the special handling of this SImode > value (i.e. the check for -21

[PATCH v1] RISC-V: bitmanip: improve constant-loading for (1ULL << 31) in DImode

The SINGLE_BIT_MASK_OPERAND() is overly restrictive, triggering for bits above 31 only (to side-step any issues with the negative SImode value 0x8000). This moves the special handling of this SImode value (i.e. the check for -2147483648) to riscv.cc and relaxes the SINGLE_BIT_MASK_OPERAND() te