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|
; RUN: llc -verify-machineinstrs -enable-machine-outliner -mtriple \
; RUN: aarch64-arm-linux-gnu %s -o - | FileCheck %s
; Check that functions that should sign their return addresses don't get
; outlined if not all of the function either support v8.3a features or all of
; the functions don't!!
define void @a() #0 {
; CHECK-LABEL: a: // @a
; CHECK: // %bb.0:
; CHECK-NEXT: .cfi_b_key_frame
; CHECK-NEXT: pacibsp
; CHECK: .cfi_negate_ra_state
; CHECK-NEXT: .cfi_def_cfa_offset
; CHECK-NOT: OUTLINED_FUNCTION_
%1 = alloca i32, align 4
%2 = alloca i32, align 4
%3 = alloca i32, align 4
%4 = alloca i32, align 4
%5 = alloca i32, align 4
%6 = alloca i32, align 4
store i32 1, ptr %1, align 4
store i32 2, ptr %2, align 4
store i32 3, ptr %3, align 4
store i32 4, ptr %4, align 4
store i32 5, ptr %5, align 4
store i32 6, ptr %6, align 4
; CHECK-NOT: auti{{[a,b]}}sp
; CHECK: retab
ret void
}
define void @b() #0 {
; CHECK-LABEL: b: // @b
; CHECK: // %bb.0:
; CHECK-NEXT: .cfi_b_key_frame
; CHECK-NEXT: pacibsp
; CHECK: .cfi_negate_ra_state
; CHECK-NEXT: .cfi_def_cfa_offset
; CHECK-NOT: OUTLINED_FUNCTION_
%1 = alloca i32, align 4
%2 = alloca i32, align 4
%3 = alloca i32, align 4
%4 = alloca i32, align 4
%5 = alloca i32, align 4
%6 = alloca i32, align 4
store i32 1, ptr %1, align 4
store i32 2, ptr %2, align 4
store i32 3, ptr %3, align 4
store i32 4, ptr %4, align 4
store i32 5, ptr %5, align 4
store i32 6, ptr %6, align 4
; CHECK-NOT: auti{{[a,b]}}sp
; CHECK: retab
ret void
}
define void @c() #1 {
; CHECK-LABEL: c: // @c
; CHECK: // %bb.0:
; CHECK-NEXT: .cfi_b_key_frame
; CHECK-NEXT: hint #27
; CHECK: .cfi_negate_ra_state
; CHECK-NEXT: .cfi_def_cfa_offset
; CHECK-NOT: OUTLINED_FUNCTION_
%1 = alloca i32, align 4
%2 = alloca i32, align 4
%3 = alloca i32, align 4
%4 = alloca i32, align 4
%5 = alloca i32, align 4
%6 = alloca i32, align 4
store i32 1, ptr %1, align 4
store i32 2, ptr %2, align 4
store i32 3, ptr %3, align 4
store i32 4, ptr %4, align 4
store i32 5, ptr %5, align 4
store i32 6, ptr %6, align 4
; CHECK: hint #31
; CHECK-NOT: ret{{[a,b]}}
ret void
}
attributes #0 = { "sign-return-address"="all"
"sign-return-address-key"="b_key"
"target-features"="+v8.3a" }
attributes #1 = { "sign-return-address"="all"
"sign-return-address-key"="b_key" }
; CHECK-NOT: OUTLINED_FUNCTION_
|
