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| author | Richard Sandiford <richard.sandiford@arm.com> | 2023-11-06 10:49:59 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2023-11-06 10:49:59 +0000 |
| commit | 89abbaa5fb3823601710394683cf2e2101aba66a (patch) | |
| tree | c6206080698829cfc752d8e1b01417036c6bfb97 | |
| parent | a7a45364dddef399bfb550235166df51108a3142 (diff) | |
| download | gcc-89abbaa5fb3823601710394683cf2e2101aba66a.zip gcc-89abbaa5fb3823601710394683cf2e2101aba66a.tar.gz gcc-89abbaa5fb3823601710394683cf2e2101aba66a.tar.bz2 | |
explow: Avoid unnecessary alignment operations
align_dynamic_address would output alignment operations even
for a required alignment of 1 byte.
gcc/
* explow.cc (align_dynamic_address): Do nothing if the required
alignment is a byte.
| -rw-r--r-- | gcc/explow.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/explow.cc b/gcc/explow.cc index aa64d5e..0be6d26 100644 --- a/gcc/explow.cc +++ b/gcc/explow.cc @@ -1201,6 +1201,9 @@ record_new_stack_level (void) rtx align_dynamic_address (rtx target, unsigned required_align) { + if (required_align == BITS_PER_UNIT) + return target; + /* CEIL_DIV_EXPR needs to worry about the addition overflowing, but we know it can't. So add ourselves and then do TRUNC_DIV_EXPR. */ |