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pr6478: The frame pointer spill frame index is only defined when there is a

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frame pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97755 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson 2010-03-04 21:42:36 +00:00
parent c46e293e94
commit 436e6e7b5c
2 changed files with 68 additions and 1 deletions
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4
lib/Target/ARM/ARMBaseRegisterInfo.cpp
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@ -1350,7 +1350,9 @@ emitPrologue(MachineFunction &MF) const {
unsigned DPRCSOffset = NumBytes - (GPRCS1Size + GPRCS2Size + DPRCSSize);
unsigned GPRCS2Offset = DPRCSOffset + DPRCSSize;
unsigned GPRCS1Offset = GPRCS2Offset + GPRCS2Size;
AFI->setFramePtrSpillOffset(MFI->getObjectOffset(FramePtrSpillFI) + NumBytes);
if (STI.isTargetDarwin() || hasFP(MF))
AFI->setFramePtrSpillOffset(MFI->getObjectOffset(FramePtrSpillFI) +
NumBytes);
AFI->setGPRCalleeSavedArea1Offset(GPRCS1Offset);
AFI->setGPRCalleeSavedArea2Offset(GPRCS2Offset);
AFI->setDPRCalleeSavedAreaOffset(DPRCSOffset);

65
test/CodeGen/ARM/2010-03-04-eabi-fp-spill.ll Normal file
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@ -0,0 +1,65 @@
; RUN: llc < %s -mtriple=arm-unknown-linux-gnueabi
define void @"java.lang.String::getChars"([84 x i8]* %method, i32 %base_pc, [788 x i8]* %thread) {
%1 = load i32* undef ; <i32> [#uses=1]
%2 = sub i32 %1, 48 ; <i32> [#uses=1]
br i1 undef, label %stack_overflow, label %no_overflow
stack_overflow: ; preds = %0
unreachable
no_overflow: ; preds = %0
%frame = inttoptr i32 %2 to [17 x i32]* ; <[17 x i32]*> [#uses=4]
%3 = load i32* undef ; <i32> [#uses=1]
%4 = load i32* null ; <i32> [#uses=1]
%5 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 13 ; <i32*> [#uses=1]
%6 = bitcast i32* %5 to [8 x i8]** ; <[8 x i8]**> [#uses=1]
%7 = load [8 x i8]** %6 ; <[8 x i8]*> [#uses=1]
%8 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 12 ; <i32*> [#uses=1]
%9 = load i32* %8 ; <i32> [#uses=1]
br i1 undef, label %bci_13, label %bci_4
bci_13: ; preds = %no_overflow
br i1 undef, label %bci_30, label %bci_21
bci_30: ; preds = %bci_13
br i1 undef, label %bci_46, label %bci_35
bci_46: ; preds = %bci_30
%10 = sub i32 %4, %3 ; <i32> [#uses=1]
%11 = load [8 x i8]** null ; <[8 x i8]*> [#uses=1]
%callee = bitcast [8 x i8]* %11 to [84 x i8]* ; <[84 x i8]*> [#uses=1]
%12 = bitcast i8* undef to i32* ; <i32*> [#uses=1]
%base_pc7 = load i32* %12 ; <i32> [#uses=2]
%13 = add i32 %base_pc7, 0 ; <i32> [#uses=1]
%14 = inttoptr i32 %13 to void ([84 x i8]*, i32, [788 x i8]*)** ; <void ([84 x i8]*, i32, [788 x i8]*)**> [#uses=1]
%entry_point = load void ([84 x i8]*, i32, [788 x i8]*)** %14 ; <void ([84 x i8]*, i32, [788 x i8]*)*> [#uses=1]
%15 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 1 ; <i32*> [#uses=1]
%16 = ptrtoint i32* %15 to i32 ; <i32> [#uses=1]
%stack_pointer_addr9 = bitcast i8* undef to i32* ; <i32*> [#uses=1]
store i32 %16, i32* %stack_pointer_addr9
%17 = getelementptr inbounds [17 x i32]* %frame, i32 0, i32 2 ; <i32*> [#uses=1]
store i32 %9, i32* %17
store i32 %10, i32* undef
store [84 x i8]* %method, [84 x i8]** undef
%18 = add i32 %base_pc, 20 ; <i32> [#uses=1]
store i32 %18, i32* undef
store [8 x i8]* %7, [8 x i8]** undef
call void %entry_point([84 x i8]* %callee, i32 %base_pc7, [788 x i8]* %thread)
br i1 undef, label %no_exception, label %exception
exception: ; preds = %bci_46
ret void
no_exception: ; preds = %bci_46
ret void
bci_35: ; preds = %bci_30
ret void
bci_21: ; preds = %bci_13
ret void
bci_4: ; preds = %no_overflow
ret void
}