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|
; RUN: llc -mtriple=aarch64-unknown-linux-gnu -aarch64-tbz-offset-bits=4 -aarch64-cbz-offset-bits=3 < %s | FileCheck %s
;; Check that branch relaxation accounts for the size of xray EXIT sleds
;; Note that TAIL_CALL sleds don't exist on AArch64 and don't need a test.
define void @exit(i1 zeroext %0) nounwind "function-instrument"="xray-always" {
; CHECK-LABEL: exit:
; CHECK-NEXT: .Lfunc_begin0:
; CHECK-NEXT: // %bb.0:
; CHECK-NEXT: .p2align 2
; CHECK-NEXT: .Lxray_sled_0:
; CHECK-NEXT: b #32
; CHECK-COUNT-7: nop
; CHECK-NOT: nop
; CHECK: tbnz
; CHECK-SAME: [[FALLTHROUGH:.LBB[0-9_]+]]
; CHECK-NEXT: b
; CHECK-SAME: [[OUT_OF_RANGE:.LBB[0-9_]+]]
; CHECK-NEXT: [[FALLTHROUGH]]:
; CHECK-NEXT: bl bar
; CHECK: .p2align 2
; CHECK-NEXT: .Lxray_sled_1:
; CHECK-NEXT: b #32
; CHECK-COUNT-7: nop
; CHECK-NOT: nop
; CHECK-NEXT: .Ltmp1:
; CHECK-NEXT: ret
; CHECK-NEXT: [[OUT_OF_RANGE]]:
; CHECK-SAME: // %end2
; CHECK-NEXT: bl baz
br i1 %0, label %end1, label %end2
end1:
%2 = call i32 @bar()
ret void
end2:
%3 = call i32 @baz()
ret void
}
;; Check that branch relaxation accounts for the size of xray EVENT sleds
define void @customevent(i1 zeroext %0, ptr nocapture noundef readonly %e1, i64 noundef %s1, ptr nocapture noundef readonly %e2, i64 noundef %s2) "function-instrument"="xray-always" {
; CHECK-LABEL: customevent:
; CHECK-NEXT: .Lfunc_begin1:
; CHECK-NEXT: .cfi_startproc
; CHECK-NEXT: // %bb.0:
; CHECK-NEXT: .p2align 2
; CHECK-NEXT: .Lxray_sled_{{[0-9]+}}:
; CHECK: cbnz
; CHECK-SAME: [[FALLTHROUGH_2:.LBB[0-9_]+]]
; CHECK-NEXT: b
; CHECK-SAME: [[OUT_OF_RANGE_2:.LBB[0-9_]+]]
; CHECK-NEXT: [[FALLTHROUGH_2]]:
; CHECK-SAME: // %end1
; CHECK-NEXT: .Lxray_sled_{{[0-9]+}}:
; CHECK-NEXT: Begin XRay custom event
; CHECK: bl __xray_CustomEvent
; CHECK: End XRay custom event
; CHECK-NEXT: [[OUT_OF_RANGE_2]]:
; CHECK-SAME: // %end2
; CHECK-NEXT: .Lxray_sled_{{[0-9]+}}:
; CHECK-NEXT: Begin XRay custom event
; CHECK: bl __xray_CustomEvent
; CHECK: End XRay custom event
; CHECK: .Ltmp
; CHECK-NEXT: ret
entry:
br i1 %0, label %end1, label %end2
end1:
call void @llvm.xray.customevent(ptr %e1, i64 %s1)
br label %end2
end2:
tail call void @llvm.xray.customevent(ptr %e2, i64 %s2)
ret void
}
;; Check that branch relaxation accounts for the size of xray TYPED_EVENT sleds
define void @typedevent(i1 zeroext %0, i64 noundef %type, ptr nocapture noundef readonly %event, i64 noundef %size) "function-instrument"="xray-always" {
; CHECK-LABEL: typedevent:
; CHECK-NEXT: .Lfunc_begin2:
; CHECK-NEXT: .cfi_startproc
; CHECK-NEXT: // %bb.0:
; CHECK-NEXT: .p2align 2
; CHECK-NEXT: .Lxray_sled_{{[0-9]+}}:
; CHECK: cbnz
; CHECK-SAME: [[FALLTHROUGH_3:.LBB[0-9_]+]]
; CHECK-NEXT: b
; CHECK-SAME: [[OUT_OF_RANGE_3:.LBB[0-9_]+]]
; CHECK-NEXT: [[FALLTHROUGH_3]]:
; CHECK-SAME: // %end1
; CHECK-NEXT: .Lxray_sled_{{[0-9]+}}:
; CHECK-NEXT: Begin XRay typed event
; CHECK: bl __xray_TypedEvent
; CHECK: End XRay typed event
; CHECK-NEXT: [[OUT_OF_RANGE_3]]:
; CHECK-SAME: // %end2
; CHECK-NEXT: .Lxray_sled_{{[0-9]+}}:
; CHECK-NEXT: Begin XRay typed event
; CHECK: bl __xray_TypedEvent
; CHECK: End XRay typed event
; CHECK: .Ltmp
; CHECK-NEXT: ret
entry:
br i1 %0, label %end1, label %end2
end1:
call void @llvm.xray.typedevent(i64 %type, ptr %event, i64 %size)
br label %end2
end2:
tail call void @llvm.xray.typedevent(i64 %size, ptr %event, i64 %type)
ret void
}
declare void @llvm.xray.customevent(ptr, i64)
declare void @llvm.xray.typedevent(i64, ptr, i64)
declare i32 @bar()
declare i32 @baz()
|
