diff options
| author | Chris Lattner <sabre@nondot.org> | 2003-05-07 19:21:28 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-05-07 19:21:28 +0000 |
| commit | c248903b2a11aadd7098b604024456b0f77f51b0 (patch) | |
| tree | f080ad0bbb6e9debf8f6d9ea04a233914d3660c6 /lib/Target/X86/InstSelectSimple.cpp | |
| parent | dff780f0466d824e775dd748d9880f0389be7260 (diff) | |
IMPLICIT_DEF was not the beautiful elegant solution I thought it was going
to be. In fact, it made stuff worse. :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6013 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/InstSelectSimple.cpp')
| -rw-r--r-- | lib/Target/X86/InstSelectSimple.cpp | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/lib/Target/X86/InstSelectSimple.cpp b/lib/Target/X86/InstSelectSimple.cpp index 3a12d5e2c9..0df00e2f94 100644 --- a/lib/Target/X86/InstSelectSimple.cpp +++ b/lib/Target/X86/InstSelectSimple.cpp @@ -79,9 +79,6 @@ namespace { BB = &F->front(); - // Declare that the stack pointer is live on entrance to the function - BuildMI(BB, X86::IMPLICIT_DEF, 0, X86::ESP); - // Copy incoming arguments off of the stack... LoadArgumentsToVirtualRegs(Fn); @@ -677,18 +674,18 @@ void ISel::visitReturnInst(ReturnInst &I) { case cInt: promote32(X86::EAX, ValueRecord(RetReg, RetVal->getType())); // Declare that EAX is live on exit - BuildMI(BB, X86::IMPLICIT_USE, 1).addReg(X86::EAX); + BuildMI(BB, X86::IMPLICIT_USE, 2).addReg(X86::EAX).addReg(X86::ESP); break; case cFP: // Floats & Doubles: Return in ST(0) BuildMI(BB, X86::FpSETRESULT, 1).addReg(RetReg); // Declare that top-of-stack is live on exit - BuildMI(BB, X86::IMPLICIT_USE, 1).addReg(X86::ST0); + BuildMI(BB, X86::IMPLICIT_USE, 2).addReg(X86::ST0).addReg(X86::ESP); break; case cLong: BuildMI(BB, X86::MOVrr32, 1, X86::EAX).addReg(RetReg); BuildMI(BB, X86::MOVrr32, 1, X86::EDX).addReg(RetReg+1); // Declare that EAX & EDX are live on exit - BuildMI(BB, X86::IMPLICIT_USE, 2).addReg(X86::EAX).addReg(X86::EDX); + BuildMI(BB, X86::IMPLICIT_USE, 3).addReg(X86::EAX).addReg(X86::EDX).addReg(X86::ESP); break; default: visitInstruction(I); |