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Author SHA1 Message Date
Chad Rosier 00f9d23f8e [AArch64] Improve load/store optimizer to handle LDUR + LDR. 
This patch allows the mixing of scaled and unscaled load/stores to form
load/store pairs.

This is a reapplication of r259812, which had an incorrect assert.  The
test_stur_str_no_assert() test is a reduced version of the issue hit in
the AArch64 self-host.

PR24465

llvm-svn: 260523
 2016-02-11 14:25:08 +00:00
Renato Golin 6274e5222d Revert "[AArch64] Improve load/store optimizer to handle LDUR + LDR (take 3)." 
This reverts commit r259812 as it broke AArch64 self-hosting.

llvm-svn: 259881
 2016-02-05 12:14:30 +00:00
Chad Rosier 05f8020cdf [AArch64] Improve load/store optimizer to handle LDUR + LDR (take 3). 
This patch allows the mixing of scaled and unscaled load/stores to form
load/store pairs.

PR24465
http://reviews.llvm.org/D12116
Many thanks to Ahmed and Michael for fixes and code review.

This is a reapplication of r246769 and r259790.  The tramp3d failure was caused
by an incorrect refactoring in the patch.  Specifically, we weren't always
properly clearing the SExtIdx flag.

llvm-svn: 259812
 2016-02-04 18:59:49 +00:00
Chad Rosier 18896c0f5e Revert "[AArch64] Improve load/store optimizer to handle LDUR + LDR." 
This reverts commit r259790. tramp3d-v4 is still having problems.

llvm-svn: 259795
 2016-02-04 16:01:40 +00:00
Chad Rosier feec2aeb0f [AArch64] Improve load/store optimizer to handle LDUR + LDR. 
This patch allows the mixing of scaled and unscaled load/stores to form
load/store pairs.

PR24465
http://reviews.llvm.org/D12116
Many thanks to Ahmed and Michael for fixes and code review.

This is a reapplication of r246769, which was reverted in r246782 due to a
test-suite failure.  I'm unable to reproduce the issue at this time.

llvm-svn: 259790
 2016-02-04 14:42:55 +00:00
Chad Rosier 08ef462d15 Revert "[AArch64] Improve load/store optimizer to handle LDUR + LDR." 
This reverts commit r246769.

This appears to have broken Multisource/Benchmarks/tramp3d-v4.

llvm-svn: 246782
 2015-09-03 16:41:28 +00:00
Chad Rosier 491a1bd998 [AArch64] Improve load/store optimizer to handle LDUR + LDR. 
This patch allows the mixing of scaled and unscaled load/stores to form
load/store pairs.

PR24465
http://reviews.llvm.org/D12116
Many thanks to Ahmed and Michael for fixes and code review.

llvm-svn: 246769
 2015-09-03 14:41:37 +00:00