diff options
| -rw-r--r-- | lib/CodeGen/RegAllocLocal.cpp | 14 | ||||
| -rw-r--r-- | test/CodeGen/X86/2010-05-05-LocalAllocEarlyClobber.ll | 2 | ||||
| -rw-r--r-- | test/CodeGen/X86/2010-05-06-LocalInlineAsmClobber.ll | 10 |
3 files changed, 14 insertions, 12 deletions
diff --git a/lib/CodeGen/RegAllocLocal.cpp b/lib/CodeGen/RegAllocLocal.cpp index f20708681b..398fc97307 100644 --- a/lib/CodeGen/RegAllocLocal.cpp +++ b/lib/CodeGen/RegAllocLocal.cpp @@ -843,18 +843,8 @@ void RALocal::AllocateBasicBlock(MachineBasicBlock &MBB) { SmallVector<unsigned, 8> Kills; for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { MachineOperand &MO = MI->getOperand(i); - if (!MO.isReg()) continue; - unsigned Reg = MO.getReg(); - if (!Reg) continue; - - // Avoid allocating assigned early clobbers below. - if (MO.isEarlyClobber() && TargetRegisterInfo::isPhysicalRegister(Reg)) { - spillPhysReg(MBB, MI, Reg, true); // Spill any existing value in reg - PhysRegsUsed[Reg] = 0; // It is free and reserved now - AddToPhysRegsUseOrder(Reg); - } - - if (!MO.isKill()) continue; + if (!MO.isReg() || !MO.isKill()) continue; + if (!MO.isImplicit()) Kills.push_back(MO.getReg()); else if (!isReadModWriteImplicitKill(MI, MO.getReg())) diff --git a/test/CodeGen/X86/2010-05-05-LocalAllocEarlyClobber.ll b/test/CodeGen/X86/2010-05-05-LocalAllocEarlyClobber.ll index 4b6a94d58c..5ad363a1a2 100644 --- a/test/CodeGen/X86/2010-05-05-LocalAllocEarlyClobber.ll +++ b/test/CodeGen/X86/2010-05-05-LocalAllocEarlyClobber.ll @@ -1,5 +1,7 @@ ; RUN: llc < %s -O0 -regalloc=local | FileCheck %s ; PR6520 +; XFAIL: * + target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32" target triple = "i386-apple-darwin10.0.0" diff --git a/test/CodeGen/X86/2010-05-06-LocalInlineAsmClobber.ll b/test/CodeGen/X86/2010-05-06-LocalInlineAsmClobber.ll new file mode 100644 index 0000000000..167acdfc07 --- /dev/null +++ b/test/CodeGen/X86/2010-05-06-LocalInlineAsmClobber.ll @@ -0,0 +1,10 @@ +; RUN: llc -regalloc=local %s -o /dev/null +; PR7066 + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" +target triple = "x86_64-unknown-linux-gnu" + +define i32 @sys_clone(i32 (i8*)* %fn, i8* %child_stack, i32 %flags, i8* %arg, i32* %parent_tidptr, i8* %newtls, i32* %child_tidptr) nounwind { + call i64 asm sideeffect "", "={ax},0,i,i,r,{si},{di},r,{dx},imr,imr,~{sp},~{memory},~{r8},~{r10},~{r11},~{cx},~{dirflag},~{fpsr},~{flags}"(i64 4294967274, i32 56, i32 60, i32 (i8*)* undef, i8* undef, i32 undef, i8* undef, i32* undef, i8* undef, i32* undef) nounwind ; <i64> [#uses=0] + ret i32 undef +} |