From 1e9de3ed2db440fac99e5cc85b7d98b0a23a2727 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 2 Sep 2005 18:33:05 +0000
Subject: [PATCH] Decouple fsqrt from gpul optimizations, implementing
fsqrt.ll. Remove the -enable-gpopt option which is subsumed by feature flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23218 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/Target/PowerPC/PPCISelLowering.cpp | 2 +-
lib/Target/PowerPC/PPCSubtarget.cpp | 11 ++++-------
lib/Target/PowerPC/PPCSubtarget.h | 3 +++
3 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp
index 8490adb3c33..d01dc05a851 100644
--- a/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -54,7 +54,7 @@ PPC32TargetLowering::PPC32TargetLowering(TargetMachine &TM)
setOperationAction(ISD::SREM , MVT::f32, Expand);
// If we're enabling GP optimizations, use hardware square root
- if (!TM.getSubtarget<PPCSubtarget>().isGigaProcessor()) {
+ if (!TM.getSubtarget<PPCSubtarget>().hasFSQRT()) {
setOperationAction(ISD::FSQRT, MVT::f64, Expand);
setOperationAction(ISD::FSQRT, MVT::f32, Expand);
}
diff --git a/lib/Target/PowerPC/PPCSubtarget.cpp b/lib/Target/PowerPC/PPCSubtarget.cpp
index 2c1b7839a5f..0efc1c152d8 100644
--- a/lib/Target/PowerPC/PPCSubtarget.cpp
+++ b/lib/Target/PowerPC/PPCSubtarget.cpp
@@ -25,11 +25,10 @@ namespace llvm {
PPCTargetArg(cl::desc("Force generation of code for a specific PPC target:"),
cl::values(
clEnumValN(TargetAIX, "aix", " Enable AIX codegen"),
- clEnumValN(TargetDarwin,"darwin"," Enable Darwin codegen"),
+ clEnumValN(TargetDarwin,"darwin",
+ " Enable Darwin codegen"),
clEnumValEnd),
cl::location(PPCTarget), cl::init(TargetDefault));
- cl::opt<bool> EnableGPOPT("enable-gpopt", cl::Hidden,
- cl::desc("Enable optimizations for GP cpus"));
}
enum PowerPCFeature {
@@ -126,7 +125,8 @@ PPCSubtarget::PPCSubtarget(const Module &M, const std::string &FS)
SubtargetFeatures::Parse(FS, CPU,
PowerPCSubTypeKV, PowerPCSubTypeKVSize,
PowerPCFeatureKV, PowerPCFeatureKVSize);
- IsGigaProcessor = (Bits & PowerPCFeatureGPUL) != 0;
+ IsGigaProcessor = (Bits & PowerPCFeatureGPUL ) != 0;
+ HasFSQRT = (Bits & PowerPCFeatureFSqrt) != 0;
// Set the boolean corresponding to the current target triple, or the default
// if one cannot be determined, to true.
@@ -140,7 +140,4 @@ PPCSubtarget::PPCSubtarget(const Module &M, const std::string &FS)
IsDarwin = true;
#endif
}
-
- // If GP opts are forced on by the commandline, do so now.
- if (EnableGPOPT) IsGigaProcessor = true;
}
diff --git a/lib/Target/PowerPC/PPCSubtarget.h b/lib/Target/PowerPC/PPCSubtarget.h
index aaf07f91299..33f73b22aaf 100644
--- a/lib/Target/PowerPC/PPCSubtarget.h
+++ b/lib/Target/PowerPC/PPCSubtarget.h
@@ -29,6 +29,7 @@ protected:
/// Used by the ISel to turn in optimizations for POWER4-derived architectures
bool IsGigaProcessor;
+ bool HasFSQRT;
bool IsAIX;
bool IsDarwin;
public:
@@ -42,6 +43,8 @@ public:
/// function for this subtarget.
unsigned getStackAlignment() const { return StackAlignment; }
+ bool hasFSQRT() const { return HasFSQRT; }
+
bool isAIX() const { return IsAIX; }
bool isDarwin() const { return IsDarwin; }