[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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@308283 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/AArch64/AArch64Subtarget.cpp b/lib/Target/AArch64/AArch64Subtarget.cpp
index a3238cf3b60f0082e22bb023119fee5216cad9fb..0ae20edda562106a3dc48fcf7145f378d802986b 100644 (file)
--- a/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -134,7 +134,9 @@ void AArch64Subtarget::initializeProperties() {
   case CortexA72:
     PrefFunctionAlignment = 4;
     break;
-  case CortexA73: break;
+  case CortexA73:
+    PrefFunctionAlignment = 4;
+    break;
   case Others: break;
   }
 }

diff --git a/test/CodeGen/AArch64/preferred-function-alignment.ll b/test/CodeGen/AArch64/preferred-function-alignment.ll
index 88e6f5dd01c9163506d548c22712e50c0b26aa8b..386a6ecccf542052e2370451ddcb614319560cb6 100644 (file)
--- a/test/CodeGen/AArch64/preferred-function-alignment.ll
+++ b/test/CodeGen/AArch64/preferred-function-alignment.ll
@@ -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