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| author | Wilco Dijkstra <wdijkstr@arm.com> | 2019-10-14 12:25:00 +0000 |
|---|---|---|
| committer | Wilco Dijkstra <wilco@gcc.gnu.org> | 2019-10-14 12:25:00 +0000 |
| commit | ea9782106cd2cfbb53237024dcc984a26acb7130 (patch) | |
| tree | 94f048d81f57eef4487a95a966ba4247639a4c68 /gcc | |
| parent | c7207339a7dbce5b68f872064e624dcf1639ba46 (diff) | |
| download | gcc-ea9782106cd2cfbb53237024dcc984a26acb7130.zip gcc-ea9782106cd2cfbb53237024dcc984a26acb7130.tar.gz gcc-ea9782106cd2cfbb53237024dcc984a26acb7130.tar.bz2 | |
[ARM] Enable arm_legitimize_address for Thumb-2
Currently arm_legitimize_address doesn't handle Thumb-2 at all, resulting in
inefficient code. Since Thumb-2 supports similar address offsets use the Arm
legitimization code for Thumb-2 to get significant codesize and performance
gains. SPECINT2006 shows 0.4% gain on Cortex-A57, while SPECFP improves 0.2%.
gcc/
* config/arm/arm.c (arm_legitimize_address): Remove Thumb-2 bailout.
From-SVN: r276961
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 9 |
2 files changed, 6 insertions, 7 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f07a0e6..176c0d2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2019-10-14 Wilco Dijkstra <wdijkstr@arm.com> + * config/arm/arm.c (arm_legitimize_address): Remove Thumb-2 bailout. + +2019-10-14 Wilco Dijkstra <wdijkstr@arm.com> + * config/arm/arm.c (arm_option_override): Don't override sched pressure algorithm. diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 394b1dd..ba33047 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -8934,13 +8934,8 @@ arm_legitimize_address (rtx x, rtx orig_x, machine_mode mode) return x; } - if (!TARGET_ARM) - { - /* TODO: legitimize_address for Thumb2. */ - if (TARGET_THUMB2) - return x; - return thumb_legitimize_address (x, orig_x, mode); - } + if (TARGET_THUMB1) + return thumb_legitimize_address (x, orig_x, mode); if (GET_CODE (x) == PLUS) { |