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| author | Claudiu Zissulescu <claziss@synopsys.com> | 2021-11-25 15:38:03 +0200 |
|---|---|---|
| committer | Claudiu Zissulescu <claziss@synopsys.com> | 2022-01-14 12:24:51 +0200 |
| commit | b3989a7b1069ef9ed56911d96e1ad153e506aabb (patch) | |
| tree | a4d6028de414d5c047279e61e7ab80c69703ec23 | |
| parent | 9a0b518a82db68c5cbd9ea8ccc47c2ff45182519 (diff) | |
| download | gcc-b3989a7b1069ef9ed56911d96e1ad153e506aabb.zip gcc-b3989a7b1069ef9ed56911d96e1ad153e506aabb.tar.gz gcc-b3989a7b1069ef9ed56911d96e1ad153e506aabb.tar.bz2 | |
arc: Update stack size computation when accumulator registers are available.
When accumulator registers are available in a processor, they need to
be save onto stack durring interrupts. We were already doing so, but
the stack size was wrongly computed in the case other than ARC600.
gcc/
* config/arc/arc.c (arc_compute_frame_size): Remove condition when
computin checking accumulator regs.
(arc_expand_prologue): Update comments.
(arc_expand_epilogue): Likewise.
Signed-off-by: Claudiu Zissulescu <claziss@synopsys.com>
| -rw-r--r-- | gcc/config/arc/arc.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c index 6de364e..3096a9b 100644 --- a/gcc/config/arc/arc.c +++ b/gcc/config/arc/arc.c @@ -2897,9 +2897,8 @@ arc_compute_frame_size (void) cfun, TARGET_DPFP)) reg_size += UNITS_PER_WORD * 2; - /* Check for special MLO/MHI case used by ARC600' MUL64 - extension. */ - if (arc_must_save_register (R58_REG, cfun, TARGET_MUL64_SET)) + /* Check if R58 is used. */ + if (arc_must_save_register (R58_REG, cfun, true)) reg_size += UNITS_PER_WORD * 2; /* 4) Calculate extra size made up of the blink + fp size. */ @@ -3878,7 +3877,7 @@ arc_expand_prologue (void) } } - /* Save ARC600' MUL64 registers. */ + /* Save accumulator registers. */ if (arc_must_save_register (R58_REG, cfun, true)) frame_size_to_allocate -= arc_save_callee_saves (3ULL << 58, false, false, 0, false); @@ -3971,7 +3970,7 @@ arc_expand_epilogue (int sibcall_p) first_offset = 0; } - /* Restore ARC600' MUL64 registers. */ + /* Restore accumulator registers. */ if (arc_must_save_register (R58_REG, cfun, true)) { rtx insn; |