From 341b864c8d3868a17d5dbcdb4bac40c6586b60cf Mon Sep 17 00:00:00 2001 From: Rafael Espindola Date: Fri, 4 Aug 2006 12:48:42 +0000 Subject: [PATCH] use a 'register pressure reducing' scheduler make sure only one move is used in a hello world git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29520 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/ARM/ARMISelDAGToDAG.cpp | 2 ++ test/CodeGen/ARM/hello.ll | 13 +++++++++++++ 2 files changed, 15 insertions(+) create mode 100644 test/CodeGen/ARM/hello.ll diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp index 000efaadde1..34d972ffa76 100644 --- a/lib/Target/ARM/ARMISelDAGToDAG.cpp +++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp @@ -44,6 +44,8 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM) setOperationAction(ISD::RET, MVT::Other, Custom); setOperationAction(ISD::GlobalAddress, MVT::i32, Custom); setOperationAction(ISD::ConstantPool, MVT::i32, Custom); + + setSchedulingPreference(SchedulingForRegPressure); } namespace llvm { diff --git a/test/CodeGen/ARM/hello.ll b/test/CodeGen/ARM/hello.ll new file mode 100644 index 00000000000..61354a0425c --- /dev/null +++ b/test/CodeGen/ARM/hello.ll @@ -0,0 +1,13 @@ +; RUN: llvm-as < %s | llc -march=arm && +; RUN: llvm-as < %s | llc -march=arm | grep mov | wc -l | grep 1 +%str = internal constant [12 x sbyte] c"Hello World\00" ; <[12 x sbyte]*> [#uses=1] + +implementation ; Functions: + +int %main() { +entry: + %tmp = call int %puts( sbyte* getelementptr ([12 x sbyte]* %str, int 0, uint 0) ) ; [#uses=0] + ret int 0 +} + +declare int %puts(sbyte*) -- 2.34.1