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[Bug target/69875] [4.9/5/6 Regression] Wrong barrier placement for 64-bit atomic loads on arm
- From: "ktkachov at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 24 Feb 2016 11:01:00 +0000
- Subject: [Bug target/69875] [4.9/5/6 Regression] Wrong barrier placement for 64-bit atomic loads on arm
- Auto-submitted: auto-generated
- References: <bug-69875-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69875
--- Comment #2 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Wed Feb 24 11:00:28 2016
New Revision: 233658
URL: https://gcc.gnu.org/viewcvs?rev=233658&root=gcc&view=rev
Log:
[ARM] PR target/69875 Fix atomic_loaddi expansion
PR target/69875
* config/arm/arm.h (TARGET_HAVE_LPAE): Define.
* config/arm/unspecs.md (VUNSPEC_LDRD_ATOMIC): New value.
* config/arm/sync.md (arm_atomic_loaddi2_ldrd): New pattern.
(atomic_loaddi_1): Delete.
(atomic_loaddi): Rewrite expander using the above changes.
* gcc.target/arm/atomic_loaddi_acquire.x: New file.
* gcc.target/arm/atomic_loaddi_relaxed.x: Likewise.
* gcc.target/arm/atomic_loaddi_seq_cst.x: Likewise.
* gcc.target/arm/atomic_loaddi_1.c: New test.
* gcc.target/arm/atomic_loaddi_2.c: Likewise.
* gcc.target/arm/atomic_loaddi_3.c: Likewise.
* gcc.target/arm/atomic_loaddi_4.c: Likewise.
* gcc.target/arm/atomic_loaddi_5.c: Likewise.
* gcc.target/arm/atomic_loaddi_6.c: Likewise.
* gcc.target/arm/atomic_loaddi_7.c: Likewise.
* gcc.target/arm/atomic_loaddi_8.c: Likewise.
* gcc.target/arm/atomic_loaddi_9.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_1.c
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_2.c
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_3.c
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_4.c
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_5.c
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_6.c
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_7.c
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_8.c
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_9.c
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_acquire.x
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_relaxed.x
trunk/gcc/testsuite/gcc.target/arm/atomic_loaddi_seq_cst.x
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/arm/arm.h
trunk/gcc/config/arm/sync.md
trunk/gcc/config/arm/unspecs.md
trunk/gcc/testsuite/ChangeLog