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Use shouldAssumeDSOLocal.
With this ARM fast isel knows that PIE variable are not preemptable. llvm-svn: 273169
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@ -2967,8 +2967,10 @@ bool ARMFastISel::tryToFoldLoadIntoMI(MachineInstr *MI, unsigned OpNo,
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unsigned ARMFastISel::ARMLowerPICELF(const GlobalValue *GV,
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unsigned Align, MVT VT) {
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Reloc::Model RM = TM.getRelocationModel();
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const Triple &TargetTriple = TM.getTargetTriple();
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bool UseGOT_PREL =
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!(GV->hasHiddenVisibility() || GV->hasLocalLinkage());
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!shouldAssumeDSOLocal(RM, TargetTriple, *GV->getParent(), GV);
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LLVMContext *Context = &MF->getFunction()->getContext();
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unsigned ARMPCLabelIndex = AFI->createPICLabelUId();
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19
test/CodeGen/ARM/fast-isel-pie.ll
Normal file
19
test/CodeGen/ARM/fast-isel-pie.ll
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@ -0,0 +1,19 @@
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; RUN: llc < %s -O0 -fast-isel-abort=1 -relocation-model=pic -mtriple=armv7-pc-linux-gnueabi | FileCheck %s
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@var = global i32 42
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define i32* @foo() {
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; CHECK: foo:
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; CHECK: ldr r0, .L[[POOL:.*]]
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; CHECK-NEXT: .L[[ADDR:.*]]:
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; CHECK-NEXT: add r0, pc, r0
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; CHECK-NEXT: bx lr
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; CHECK: .L[[POOL]]:
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; CHECK-NEXT: .long var-(.L[[ADDR]]+8)
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ret i32* @var
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}
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!llvm.module.flags = !{!0}
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!0 = !{i32 1, !"PIE Level", i32 2}
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