[llvm] r308283 - [AArch64] Use 16 bytes as preferred function alignment on Cortex-A73.

[Florian Hahn via llvm-commits]

Author: fhahn
Date: Tue Jul 18 02:31:18 2017
New Revision: 308283

URL: http://llvm.org/viewvc/llvm-project?rev=308283&view=rev
Log:
[AArch64] Use 16 bytes as preferred function alignment on Cortex-A73.

Summary:
Using 16 byte alignment is beneficial on Cortex-A73, similar to
Cortex-A72 (added in D34961).

Reviewers: mcrosier, t.p.northover, aadg, silviu.baranga

Reviewed By: t.p.northover

Subscribers: aemerson, rengolin, javed.absar, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D35493

Modified:
    llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp
    llvm/trunk/test/CodeGen/AArch64/preferred-function-alignment.ll

Modified: llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp?rev=308283&r1=308282&r2=308283&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64Subtarget.cpp Tue Jul 18 02:31:18 2017
@@ -134,7 +134,9 @@ void AArch64Subtarget::initializePropert
   case CortexA72:
     PrefFunctionAlignment = 4;
     break;
-  case CortexA73: break;
+  case CortexA73:
+    PrefFunctionAlignment = 4;
+    break;
   case Others: break;
   }
 }

Modified: llvm/trunk/test/CodeGen/AArch64/preferred-function-alignment.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/AArch64/preferred-function-alignment.ll?rev=308283&r1=308282&r2=308283&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/AArch64/preferred-function-alignment.ll (original)
+++ llvm/trunk/test/CodeGen/AArch64/preferred-function-alignment.ll Tue Jul 18 02:31:18 2017
@@ -1,7 +1,6 @@
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=generic < %s | FileCheck --check-prefix=ALIGN2 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=cortex-a35 < %s | FileCheck --check-prefix=ALIGN2 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=cortex-a53 < %s | FileCheck --check-prefix=ALIGN2 %s
-; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=cortex-a73 < %s | FileCheck --check-prefix=ALIGN2 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=cyclone < %s | FileCheck --check-prefix=ALIGN2 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=falkor < %s | FileCheck --check-prefix=ALIGN2 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=kryo < %s | FileCheck --check-prefix=ALIGN2 %s
@@ -12,6 +11,7 @@
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=thunderx2t99 < %s | FileCheck --check-prefix=ALIGN3 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=cortex-a57 < %s | FileCheck --check-prefix=ALIGN4 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=cortex-a72 < %s | FileCheck --check-prefix=ALIGN4 %s
+; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=cortex-a73 < %s | FileCheck --check-prefix=ALIGN4 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=exynos-m1 < %s | FileCheck --check-prefix=ALIGN4 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=exynos-m2 < %s | FileCheck --check-prefix=ALIGN4 %s
 ; RUN: llc -mtriple=aarch64-unknown-linux -mcpu=exynos-m3 < %s | FileCheck --check-prefix=ALIGN4 %s