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94c00d2e59
As of today we only use .cfi_offset to specify the offset of a CSR, but we never use .cfi_restore when the CSR is restored. If we want to perform a more advanced type of shrink-wrapping, we need to use .cfi_restore in order to switch the CFI state between blocks. This patch only aims at adding support for the directive. Differential Revision: https://reviews.llvm.org/D36114 llvm-svn: 317199
27 lines
508 B
ArmAsm
27 lines
508 B
ArmAsm
// RUN: llvm-mc -triple aarch64-- -o - %s | FileCheck %s
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fun:
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.cfi_startproc
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// CHECK: .cfi_startproc
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stp x29, x30, [sp, #-16]!
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.Lcfi0:
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.cfi_offset w29, -16
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// CHECK: .cfi_offset w29, -16
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.Lcfi1:
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.cfi_offset w30, -8
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// CHECK: .cfi_offset w30, -8
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mov x29, sp
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.Lcfi2:
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.cfi_def_cfa w29, 16
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// CHECK: .cfi_def_cfa w29, 16
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.Lcfi3:
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.cfi_restore w30
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// CHECK: .cfi_restore w30
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ldr x29, [sp], #16
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.Lcfi4:
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.cfi_restore w29
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// CHECK: .cfi_restore w29
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ret
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.cfi_endproc
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// CHECK: .cfi_endproc
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