mirror of
https://github.com/c64scene-ar/llvm-6502.git
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70 lines
2.0 KiB
LLVM
70 lines
2.0 KiB
LLVM
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; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -relocation-model=pic %s -o - | FileCheck %s
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; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -relocation-model=pic -filetype=obj %s -o -| llvm-objdump -r - | FileCheck --check-prefix=CHECK-ELF %s
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@var = global i32 0
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; CHECK-ELF: RELOCATION RECORDS FOR [.text]
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define i32 @get_globalvar() {
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; CHECK: get_globalvar:
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%val = load i32* @var
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; CHECK: adrp x[[GOTHI:[0-9]+]], :got:var
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; CHECK: ldr x[[GOTLOC:[0-9]+]], [x[[GOTHI]], #:got_lo12:var]
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; CHECK: ldr w0, [x[[GOTLOC]]]
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; CHECK-ELF: R_AARCH64_ADR_GOT_PAGE var
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; CHECK-ELF: R_AARCH64_LD64_GOT_LO12_NC var
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ret i32 %val
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}
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define i32* @get_globalvaraddr() {
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; CHECK: get_globalvaraddr:
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%val = load i32* @var
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; CHECK: adrp x[[GOTHI:[0-9]+]], :got:var
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; CHECK: ldr x0, [x[[GOTHI]], #:got_lo12:var]
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; CHECK-ELF: R_AARCH64_ADR_GOT_PAGE var
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; CHECK-ELF: R_AARCH64_LD64_GOT_LO12_NC var
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ret i32* @var
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}
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@hiddenvar = hidden global i32 0
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define i32 @get_hiddenvar() {
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; CHECK: get_hiddenvar:
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%val = load i32* @hiddenvar
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; CHECK: adrp x[[HI:[0-9]+]], hiddenvar
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; CHECK: ldr w0, [x[[HI]], #:lo12:hiddenvar]
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; CHECK-ELF: R_AARCH64_ADR_PREL_PG_HI21 hiddenvar
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; CHECK-ELF: R_AARCH64_LDST32_ABS_LO12_NC hiddenvar
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ret i32 %val
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}
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define i32* @get_hiddenvaraddr() {
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; CHECK: get_hiddenvaraddr:
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%val = load i32* @hiddenvar
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; CHECK: adrp [[HI:x[0-9]+]], hiddenvar
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; CHECK: add x0, [[HI]], #:lo12:hiddenvar
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; CHECK-ELF: R_AARCH64_ADR_PREL_PG_HI21 hiddenvar
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; CHECK-ELF: R_AARCH64_ADD_ABS_LO12_NC hiddenvar
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ret i32* @hiddenvar
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}
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define void()* @get_func() {
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; CHECK: get_func:
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ret void()* bitcast(void()*()* @get_func to void()*)
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; CHECK: adrp x[[GOTHI:[0-9]+]], :got:get_func
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; CHECK: ldr x0, [x[[GOTHI]], #:got_lo12:get_func]
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; Particularly important that the ADRP gets a relocation, LLVM tends to think
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; it can relax it because it knows where get_func is. It can't!
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; CHECK-ELF: R_AARCH64_ADR_GOT_PAGE get_func
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; CHECK-ELF: R_AARCH64_LD64_GOT_LO12_NC get_func
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}
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