Commit Graph

9 Commits

Author SHA1 Message Date
Paul Osmialowski 4f5b3be7f1 add support for -print-imm-hex for AArch64
Most immediates are printed in Aarch64InstPrinter using 'formatImm' macro,
but not all of them.

Implementation contains following rules:

- floating point immediates are always printed as decimal
- signed integer immediates are printed depends on flag settings
  (for negative values 'formatImm' macro prints the value as i.e -0x01
  which may be convenient when imm is an address or offset)
- logical immediates are always printed as hex
- the 64-bit immediate for advSIMD, encoded in "a🅱️c:d:e:f:g:h" is always printed as hex
- the 64-bit immedaite in exception generation instructions like:
  brk, dcps1, dcps2, dcps3, hlt, hvc, smc, svc is always printed as hex
- the rest of immediates is printed depends on availability
  of -print-imm-hex

Signed-off-by: Maciej Gabka <maciej.gabka@arm.com>
Signed-off-by: Paul Osmialowski <pawel.osmialowski@arm.com>

Differential Revision: http://reviews.llvm.org/D16929

llvm-svn: 269446
2016-05-13 18:00:09 +00:00
Ahmed Bougacha dfc77357a0 [AArch64] Don't assume extractelt constant index when matching shuffle.
llvm-svn: 257735
2016-01-14 02:12:30 +00:00
Matthew Simpson 11c4de6054 [AArch64] Add additional extract-extend patterns for smov
This patch adds to the target description two additional patterns for matching
extract-extend operations to SMOV. The patterns catch the v16i8-to-i64 and
v8i16-to-i64 cases. The existing patterns miss these cases because the
extracted elements must first be legalized to i32, resulting in any_extend
nodes.

This was originally implemented as a DAG combine (r255895), but was reverted
due to failing out-of-tree tests.

llvm-svn: 256176
2015-12-21 18:31:25 +00:00
Matthew Simpson 13dddb0799 Revert "[AArch64] Add DAG combine for extract extend pattern"
This reverts commit r255895. The patch breaks internal tests. Reverting until a
fix is ready.

llvm-svn: 255928
2015-12-17 21:29:47 +00:00
Matthew Simpson 4355e404d5 [AArch64] Add DAG combine for extract extend pattern
This patch adds a DAG combine for (any_extend (extract_vector_elt v, i)) ->
(extract_vector_elt v, i). The combine enables us to better match some SMOV
patterns.

Differential Revision: http://reviews.llvm.org/D15515

llvm-svn: 255895
2015-12-17 14:30:55 +00:00
Simon Pilgrim ed2ba33ba0 [DAGCombiner] Combine shuffles of BUILD_VECTOR and SCALAR_TO_VECTOR
This patch attempts to fold the shuffling of 'scalar source' inputs - BUILD_VECTOR and SCALAR_TO_VECTOR nodes - if the shuffle node is the only user. This folds away a lot of unnecessary shuffle nodes, and allows quite a bit of constant folding that was being missed.

Differential Revision: http://reviews.llvm.org/D8516

llvm-svn: 234004
2015-04-03 10:02:21 +00:00
Ahmed Bougacha dff57a6143 [AArch64] Prefer DUP/MOV ("CPY") to INS for vector_extract.
This avoids a partial false dependency on the previous content of
the upper lanes of the destination vector register.

Differential Revision: http://reviews.llvm.org/D7307

llvm-svn: 227820
2015-02-02 17:55:57 +00:00
Chandler Carruth 9d010fffe1 [codegen,aarch64] Add a target hook to the code generator to control
vector type legalization strategies in a more fine grained manner, and
change the legalization of several v1iN types and v1f32 to be widening
rather than scalarization on AArch64.

This fixes an assertion failure caused by scalarizing nodes like "v1i32
trunc v1i64". As v1i64 is legal it will fail to scalarize v1i32.

This also provides a foundation for other targets to have more granular
control over how vector types are legalized.

Patch by Hao Liu, reviewed by Tim Northover. I'm committing it to allow
some work to start taking place on top of this patch as it adds some
really important hooks to the backend that I'd like to immediately start
using. =]

http://reviews.llvm.org/D4322

llvm-svn: 212242
2014-07-03 00:23:43 +00:00
Tim Northover 3b0846e8f7 AArch64/ARM64: move ARM64 into AArch64's place
This commit starts with a "git mv ARM64 AArch64" and continues out
from there, renaming the C++ classes, intrinsics, and other
target-local objects for consistency.

"ARM64" test directories are also moved, and tests that began their
life in ARM64 use an arm64 triple, those from AArch64 use an aarch64
triple. Both should be equivalent though.

This finishes the AArch64 merge, and everyone should feel free to
continue committing as normal now.

llvm-svn: 209577
2014-05-24 12:50:23 +00:00