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| author | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2013-06-01 20:42:48 +0000 |
|---|---|---|
| committer | Venkatraman Govindaraju <venkatra@cs.wisc.edu> | 2013-06-01 20:42:48 +0000 |
| commit | 28e2cd0e7e2afeefed417bf9b33cf0d8552f15f5 (patch) | |
| tree | 5f84be1ca162dabee1a583fb34360767ec896be8 /llvm | |
| parent | 91142c485e1f3d03408d03077f53e2b71f28f7ce (diff) | |
| download | bcm5719-llvm-28e2cd0e7e2afeefed417bf9b33cf0d8552f15f5.tar.gz bcm5719-llvm-28e2cd0e7e2afeefed417bf9b33cf0d8552f15f5.zip | |
Sparc: Mark functions calling llvm.vastart and llvm.returnaddress intrinsics as non-leaf functions.
llvm-svn: 183079
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/Sparc/SparcISelLowering.cpp | 6 | ||||
| -rw-r--r-- | llvm/test/CodeGen/SPARC/2011-01-11-FrameAddr.ll | 23 | ||||
| -rw-r--r-- | llvm/test/CodeGen/SPARC/varargs.ll | 1 |
3 files changed, 30 insertions, 0 deletions
diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp index 561a01925ac..140efc3a53f 100644 --- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp +++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp @@ -1613,6 +1613,9 @@ static SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG, MachineFunction &MF = DAG.getMachineFunction(); SparcMachineFunctionInfo *FuncInfo = MF.getInfo<SparcMachineFunctionInfo>(); + //Need frame address to find the address of VarArgsFrameIndex + MF.getFrameInfo()->setFrameAddressIsTaken(true); + // vastart just stores the address of the VarArgsFrameIndex slot into the // memory location argument. SDLoc DL(Op); @@ -1719,6 +1722,9 @@ static SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) { if (depth == 0) RetAddr = DAG.getCopyFromReg(DAG.getEntryNode(), dl, RetReg, VT); else { + //Need frame address to find return address of the caller + MFI->setFrameAddressIsTaken(true); + // flush first to make sure the windowed registers' values are in stack SDValue Chain = getFLUSHW(Op, DAG); RetAddr = DAG.getCopyFromReg(Chain, dl, SP::I6, VT); diff --git a/llvm/test/CodeGen/SPARC/2011-01-11-FrameAddr.ll b/llvm/test/CodeGen/SPARC/2011-01-11-FrameAddr.ll index 9e6583ca2ce..e8ade985e3c 100644 --- a/llvm/test/CodeGen/SPARC/2011-01-11-FrameAddr.ll +++ b/llvm/test/CodeGen/SPARC/2011-01-11-FrameAddr.ll @@ -2,6 +2,9 @@ ;RUN: llc -march=sparc -mattr=v9 < %s | FileCheck %s -check-prefix=V9 ;RUN: llc -march=sparc -regalloc=basic < %s | FileCheck %s -check-prefix=V8 ;RUN: llc -march=sparc -regalloc=basic -mattr=v9 < %s | FileCheck %s -check-prefix=V9 +;RUN: llc -march=sparc -disable-sparc-leaf-proc=0 < %s | FileCheck %s -check-prefix=V8LEAF +;RUN: llc -march=sparc -disable-sparc-leaf-proc=0 -mattr=v9 < %s | FileCheck %s -check-prefix=V9LEAF + define i8* @frameaddr() nounwind readnone { entry: @@ -42,6 +45,13 @@ entry: ;V9: retaddr ;V9: or %g0, %i7, {{.+}} + +;V8LEAF: retaddr: +;V8LEAF: or %g0, %o7, %o0 + +;V9LEAF: retaddr: +;V9LEAF: or %g0, %o7, %o0 + %0 = tail call i8* @llvm.returnaddress(i32 0) ret i8* %0 } @@ -59,6 +69,19 @@ entry: ;V9: ld [%fp+56], {{.+}} ;V9: ld [{{.+}}+56], {{.+}} ;V9: ld [{{.+}}+60], {{.+}} + +;V8LEAF: retaddr2 +;V8LEAF: ta 3 +;V8LEAF: ld [%fp+56], %[[R:[goli][0-7]]] +;V8LEAF: ld [%[[R]]+56], %[[R1:[goli][0-7]]] +;V8LEAF: ld [%[[R1]]+60], {{.+}} + +;V9LEAF: retaddr2 +;V9LEAF: flushw +;V9LEAF: ld [%fp+56], %[[R:[goli][0-7]]] +;V9LEAF: ld [%[[R]]+56], %[[R1:[goli][0-7]]] +;V9LEAF: ld [%[[R1]]+60], {{.+}} + %0 = tail call i8* @llvm.returnaddress(i32 3) ret i8* %0 } diff --git a/llvm/test/CodeGen/SPARC/varargs.ll b/llvm/test/CodeGen/SPARC/varargs.ll index b13f90e6ca7..76e16cd44f6 100644 --- a/llvm/test/CodeGen/SPARC/varargs.ll +++ b/llvm/test/CodeGen/SPARC/varargs.ll @@ -1,4 +1,5 @@ ; RUN: llc < %s -disable-block-placement | FileCheck %s +; RUN: llc < %s -disable-block-placement -disable-sparc-leaf-proc=0 | FileCheck %s 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-n32:64-S128" target triple = "sparcv9-sun-solaris" |
