[ARM] Enable misched for R52.

Back when the R52 schedule was added in rL286949, there was no way
to enable machine schedules in ARM for specific cores. Since then a
target feature has been added. This enables the feature for R52,
removing the need to manually specify compiler flags.

llvm-svn: 331027

diff --git a/llvm/lib/Target/ARM/ARM.td b/llvm/lib/Target/ARM/ARM.td
index ecb2ef2..477f45f 100644 (file)
--- a/llvm/lib/Target/ARM/ARM.td
+++ b/llvm/lib/Target/ARM/ARM.td
@@ -999,6 +999,7 @@ def : ProcNoItin<"kryo",                                [ARMv8a, ProcKryo,
                                                          FeatureCRC]>;
 
 def : ProcessorModel<"cortex-r52", CortexR52Model,      [ARMv8r, ProcR52,
+                                                         FeatureUseMISched,
                                                          FeatureFPAO]>;
 
 //===----------------------------------------------------------------------===//

diff --git a/llvm/test/CodeGen/ARM/cortexr52-misched-basic.ll b/llvm/test/CodeGen/ARM/cortexr52-misched-basic.ll
index 0edc665..c6bff0c 100644 (file)
--- a/llvm/test/CodeGen/ARM/cortexr52-misched-basic.ll
+++ b/llvm/test/CodeGen/ARM/cortexr52-misched-basic.ll
@@ -1,5 +1,5 @@
 ; REQUIRES: asserts
-; RUN: llc < %s -mtriple=armv8r-eabi -mcpu=cortex-r52 -enable-misched -verify-misched -debug-only=machine-scheduler -o - 2>&1 > /dev/null | FileCheck %s --check-prefix=CHECK --check-prefix=R52_SCHED
+; RUN: llc < %s -mtriple=armv8r-eabi -mcpu=cortex-r52 -verify-misched -debug-only=machine-scheduler -o - 2>&1 > /dev/null | FileCheck %s --check-prefix=CHECK --check-prefix=R52_SCHED
 ; RUN: llc < %s -mtriple=armv8r-eabi -mcpu=generic    -enable-misched -verify-misched -debug-only=machine-scheduler -o - 2>&1 > /dev/null | FileCheck %s --check-prefix=CHECK --check-prefix=GENERIC
 ;
 ; Check the latency for instructions for both generic and cortex-r52.