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llvm-project/llvm/test/CodeGen/AArch64/xray-attribute-instrumentat...

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[XRay][AArch64] Implemented a test for the compile-time sleds emitted, and fixed a bug in the jump instruction This patch adds a test for the assembly code emitted with XRay instrumentation. It also fixes a bug where the operand of a jump instruction must be not the number of bytes to jump over, but rather the number of 4-byte instructions. Author: rSerge Reviewers: dberris, rengolin Differential Revision: https://reviews.llvm.org/D26805 llvm-svn: 287516
2016-11-21 11:01:43 +08:00
; RUN: llc -filetype=asm -o - -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s
define i32 @foo() nounwind noinline uwtable "function-instrument"="xray-always" {
; CHECK-LABEL: Lxray_sled_0:
; CHECK-NEXT: b #32
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-LABEL: Ltmp0:
ret i32 0
; CHECK-LABEL: Lxray_sled_1:
; CHECK-NEXT: b #32
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-NEXT: nop
; CHECK-LABEL: Ltmp1:
; CHECK-NEXT: ret
}
; CHECK: .p2align 4
; CHECK-NEXT: .xword .Lxray_synthetic_0
; CHECK-NEXT: .section xray_instr_map,{{.*}}
; CHECK-LABEL: Lxray_synthetic_0:
; CHECK: .xword .Lxray_sled_0
; CHECK: .xword .Lxray_sled_1