Hi,
Functions cmse_nonsecure_call_clear_caller_saved () and
cmse_nonsecure_entry_clear_before_return () use a separate variable
holding a pointer to padding_bits_to_clear array's first entry which is
used when calling function compute_not_to_clear_mask (). This does not
save space over using &padding_bits_to_clear[0] directly so this commit
gets rid of it.
ChangeLog entry is as follows:
*** gcc/ChangeLog ***
2017-11-08 Thomas Preud'homme <[email protected]>
* config/arm/arm.c (cmse_nonsecure_call_clear_caller_saved): Get rid of
padding_bits_to_clear_ptr.
(cmse_nonsecure_entry_clear_before_return): Likewise.
Testing: Bootstrapped an arm-none-linux-gnueabihf compiler and
regression test does not show any regression.
Committed as obvious.
Best regards,
Thomas
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 7384b96fea0179334a6010b099df68c8e2a0fc32..bcb708c1b316ea08969e118fb0949b941ff19c27 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -17002,7 +17002,6 @@ cmse_nonsecure_call_clear_caller_saved (void)
bool using_r4, first_param = true;
function_args_iterator args_iter;
uint32_t padding_bits_to_clear[4] = {0U, 0U, 0U, 0U};
- uint32_t * padding_bits_to_clear_ptr = &padding_bits_to_clear[0];
if (!NONDEBUG_INSN_P (insn))
continue;
@@ -17086,7 +17085,7 @@ cmse_nonsecure_call_clear_caller_saved (void)
to_clear_args_mask
= compute_not_to_clear_mask (arg_type, arg_rtx,
REGNO (arg_rtx),
- padding_bits_to_clear_ptr);
+ &padding_bits_to_clear[0]);
if (to_clear_args_mask)
{
for (regno = R0_REGNUM; regno <= maxregno; regno++)
@@ -25134,7 +25133,6 @@ cmse_nonsecure_entry_clear_before_return (void)
{
int regno, maxregno = TARGET_HARD_FLOAT ? LAST_VFP_REGNUM : IP_REGNUM;
uint32_t padding_bits_to_clear = 0;
- uint32_t * padding_bits_to_clear_ptr = &padding_bits_to_clear;
auto_sbitmap to_clear_bitmap (maxregno + 1);
tree result_type;
rtx result_rtl;
@@ -25187,7 +25185,7 @@ cmse_nonsecure_entry_clear_before_return (void)
gcc_assert (REG_P (result_rtl));
to_clear_return_mask
= compute_not_to_clear_mask (result_type, result_rtl, 0,
- padding_bits_to_clear_ptr);
+ &padding_bits_to_clear);
if (to_clear_return_mask)
{
gcc_assert ((unsigned) maxregno < sizeof (long long) * __CHAR_BIT__);
