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21cd444174
Follow-up of D78082 (x86-64). This change avoids dynamic relocations in `xray_instr_map` for ARM/AArch64/powerpc64le. MIPS64 cannot use 64-bit PC-relative addresses because R_MIPS_PC64 is not defined. Because MIPS32 shares the same code, for simplicity, we don't use PC-relative addresses for MIPS32 as well. Tested on AArch64 Linux and ppc64le Linux. Reviewed By: ianlevesque Differential Revision: https://reviews.llvm.org/D78590
76 lines
2.0 KiB
LLVM
76 lines
2.0 KiB
LLVM
; RUN: llc -filetype=asm -o - -mtriple=aarch64-linux-gnu < %s | FileCheck %s
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define i32 @callee() nounwind noinline uwtable "function-instrument"="xray-always" {
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; CHECK: .p2align 2
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; CHECK-LABEL: .Lxray_sled_0:
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; CHECK-NEXT: b #32
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-LABEL: .Ltmp0:
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ret i32 0
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; CHECK-NEXT: mov w0, wzr
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; CHECK-NEXT: .p2align 2
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; CHECK-LABEL: .Lxray_sled_1:
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; CHECK-NEXT: b #32
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-LABEL: .Ltmp1:
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; CHECK-NEXT: ret
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}
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; CHECK-LABEL: xray_instr_map
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; CHECK-LABEL: .Lxray_sleds_start0:
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; CHECK-NEXT: .Ltmp2:
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; CHECK: .xword .Lxray_sled_0-.Ltmp2
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; CHECK: .Ltmp3:
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; CHECK-NEXT: .xword .Lxray_sled_1-.Ltmp3
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; CHECK-LABEL: Lxray_sleds_end0:
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; CHECK-LABEL: xray_fn_idx
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; CHECK: .xword .Lxray_sleds_start0
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; CHECK-NEXT: .xword .Lxray_sleds_end0
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define i32 @caller() nounwind noinline uwtable "function-instrument"="xray-always" {
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; CHECK: .p2align 2
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; CHECK-LABEL: Lxray_sled_2:
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; CHECK-NEXT: b #32
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-LABEL: .Ltmp4:
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; CHECK: .p2align 2
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; CHECK-LABEL: Lxray_sled_3:
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; CHECK-NEXT: b #32
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-NEXT: nop
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; CHECK-LABEL: .Ltmp5:
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%retval = tail call i32 @callee()
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; CHECK: b callee
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ret i32 %retval
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}
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; CHECK-LABEL: xray_instr_map
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; CHECK-LABEL: Lxray_sleds_start1:
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; CHECK: .xword .Lxray_sled_2
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; CHECK: .xword .Lxray_sled_3
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; CHECK-LABEL: Lxray_sleds_end1:
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; CHECK: .section xray_fn_idx,{{.*}}
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; CHECK: .xword .Lxray_sleds_start1
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; CHECK-NEXT: .xword .Lxray_sleds_end1
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