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The callee address is added as an optional operand (MCSymbol) in AdjustInstrPostInstrSelection() and then used by asm printer to insert: '.reloc tmplabel, R_MIPS_JALR, symbol tmplabel:'. Controlled with '-mips-jalr-reloc', default is true. Differential revision: https://reviews.llvm.org/D56694 llvm-svn: 351485
20 lines
691 B
LLVM
20 lines
691 B
LLVM
; Check call to mcount in case of long/short call options.
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; RUN: llc -march=mips -target-abi o32 --mattr=+long-calls,+noabicalls < %s \
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; RUN: -mips-jalr-reloc=false | FileCheck -check-prefixes=CHECK,LONG %s
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; RUN: llc -march=mips -target-abi o32 --mattr=-long-calls,+noabicalls < %s \
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; RUN: -mips-jalr-reloc=false | FileCheck -check-prefixes=CHECK,SHORT %s
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; Function Attrs: noinline nounwind optnone
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define void @foo() #0 {
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entry:
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ret void
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; CHECK-LABEL: foo
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; LONG: lui $1, %hi(_mcount)
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; LONG-NEXT: addiu $25, $1, %lo(_mcount)
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; LONG-NEXT: jalr $25
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; SHORT: jal _mcount
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}
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attributes #0 = { "instrument-function-entry-inlined"="_mcount" }
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