[llvm] r183579 - Revert commits related to stack warning.

[Quentin Colombet]

Author: qcolombet
Date: Fri Jun  7 17:14:50 2013
New Revision: 183579

URL: http://llvm.org/viewvc/llvm-project?rev=183579&view=rev
Log:
Revert commits related to stack warning.

Removed:
    llvm/trunk/test/CodeGen/ARM/warn-stack.ll
    llvm/trunk/test/CodeGen/X86/warn-stack.ll
Modified:
    llvm/trunk/lib/CodeGen/PrologEpilogInserter.cpp

Modified: llvm/trunk/lib/CodeGen/PrologEpilogInserter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/PrologEpilogInserter.cpp?rev=183579&r1=183578&r2=183579&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/PrologEpilogInserter.cpp (original)
+++ llvm/trunk/lib/CodeGen/PrologEpilogInserter.cpp Fri Jun  7 17:14:50 2013
@@ -35,7 +35,6 @@
 #include "llvm/Support/CommandLine.h"
 #include "llvm/Support/Compiler.h"
 #include "llvm/Support/Debug.h"
-#include "llvm/Support/raw_ostream.h"
 #include "llvm/Target/TargetFrameLowering.h"
 #include "llvm/Target/TargetInstrInfo.h"
 #include "llvm/Target/TargetMachine.h"
@@ -47,11 +46,6 @@ using namespace llvm;
 char PEI::ID = 0;
 char &llvm::PrologEpilogCodeInserterID = PEI::ID;
 
-static cl::opt<uint64_t>
-WarnStackSize("warn-stack-size", cl::Hidden,
-              cl::desc("Warn for stack size bigger than the given"
-                       " number"));
-
 INITIALIZE_PASS_BEGIN(PEI, "prologepilog",
                 "Prologue/Epilogue Insertion", false, false)
 INITIALIZE_PASS_DEPENDENCY(MachineLoopInfo)
@@ -134,13 +128,6 @@ bool PEI::runOnMachineFunction(MachineFu
   // Clear any vregs created by virtual scavenging.
   Fn.getRegInfo().clearVirtRegs();
 
-  // Warn on stack size when we exceeds the given limit.
-  MachineFrameInfo *MFI = Fn.getFrameInfo();
-  if (WarnStackSize.getNumOccurrences() > 0 &&
-      WarnStackSize < MFI->getStackSize())
-    errs() << "warning: Stack size limit exceeded (" << MFI->getStackSize()
-           << ") in " << Fn.getName()  << ".\n";
-
   delete RS;
   clearAllSets();
   return true;

Removed: llvm/trunk/test/CodeGen/ARM/warn-stack.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/warn-stack.ll?rev=183578&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/warn-stack.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/warn-stack.ll (removed)
@@ -1,24 +0,0 @@
-; RUN: llc -mtriple thumbv7-apple-ios3.0.0 -warn-stack-size=80 < %s 2>&1 >/dev/null | FileCheck %s
-; Check the internal option that warns when the stack size exceeds the
-; given amount.
-; <rdar://13987214>
-
-; CHECK-NOT: nowarn
-define void @nowarn() nounwind ssp {
-entry:
-  %buffer = alloca [12 x i8], align 1
-  %arraydecay = getelementptr inbounds [12 x i8]* %buffer, i64 0, i64 0
-  call void @doit(i8* %arraydecay) nounwind
-  ret void
-}
-
-; CHECK: warning: Stack size limit exceeded (96) in warn.
-define void @warn() nounwind ssp {
-entry:
-  %buffer = alloca [80 x i8], align 1
-  %arraydecay = getelementptr inbounds [80 x i8]* %buffer, i64 0, i64 0
-  call void @doit(i8* %arraydecay) nounwind
-  ret void
-}
-
-declare void @doit(i8*)

Removed: llvm/trunk/test/CodeGen/X86/warn-stack.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/warn-stack.ll?rev=183578&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/X86/warn-stack.ll (original)
+++ llvm/trunk/test/CodeGen/X86/warn-stack.ll (removed)
@@ -1,24 +0,0 @@
-; RUN: llc -mtriple x86_64-apple-10.8.0 -warn-stack-size=80 < %s 2>&1 >/dev/null | FileCheck %s
-; Check the internal option that warns when the stack size exceeds the
-; given amount.
-; <rdar://13987214>
-
-; CHECK-NOT: nowarn
-define void @nowarn() nounwind ssp {
-entry:
-  %buffer = alloca [12 x i8], align 1
-  %arraydecay = getelementptr inbounds [12 x i8]* %buffer, i64 0, i64 0
-  call void @doit(i8* %arraydecay) nounwind
-  ret void
-}
-
-; CHECK: warning: Stack size limit exceeded (88) in warn.
-define void @warn() nounwind ssp {
-entry:
-  %buffer = alloca [80 x i8], align 1
-  %arraydecay = getelementptr inbounds [80 x i8]* %buffer, i64 0, i64 0
-  call void @doit(i8* %arraydecay) nounwind
-  ret void
-}
-
-declare void @doit(i8*)