Hi,
On 2022/7/7 16:04, Lulu Cheng wrote:
gcc/ChangeLog:
* config/loongarch/loongarch.cc (loongarch_compute_frame_info):
Modify fp_sp_offset and gp_sp_offset's calculation method,
when frame->mask or frame->fmask is zero, don't minus UNITS_PER_WORD
or UNITS_PER_FP_REG.
IMO it's better to also state which problem this change is meant to
solve (i.e. your intent), better yet, with an appropriate bugzilla link.
---
gcc/config/loongarch/loongarch.cc | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/gcc/config/loongarch/loongarch.cc
b/gcc/config/loongarch/loongarch.cc
index d72b256df51..5c9a33c14f7 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -917,8 +917,12 @@ loongarch_compute_frame_info (void)
frame->frame_pointer_offset = offset;
/* Next are the callee-saved FPRs. */
if (frame->fmask)
- offset += LARCH_STACK_ALIGN (num_f_saved * UNITS_PER_FP_REG);
- frame->fp_sp_offset = offset - UNITS_PER_FP_REG;
+ {
+ offset += LARCH_STACK_ALIGN (num_f_saved * UNITS_PER_FP_REG);
+ frame->fp_sp_offset = offset - UNITS_PER_FP_REG;
+ }
+ else
+ frame->fp_sp_offset = offset;
/* Next are the callee-saved GPRs. */
if (frame->mask)
{
@@ -931,8 +935,10 @@ loongarch_compute_frame_info (void)
frame->save_libcall_adjustment = x_save_size;
offset += x_save_size;
+ frame->gp_sp_offset = offset - UNITS_PER_WORD;
}
- frame->gp_sp_offset = offset - UNITS_PER_WORD;
+ else
+ frame->gp_sp_offset = offset;
/* The hard frame pointer points above the callee-saved GPRs. */
frame->hard_frame_pointer_offset = offset;
/* Above the hard frame pointer is the callee-allocated varags save area.
*/
