| ; RUN: llc -verify-machineinstrs -enable-machine-outliner -mtriple \ |
| ; RUN: aarch64-arm-none-eabi %s -o - | FileCheck %s --check-prefixes CHECK,V8A |
| ; RUN-V83A: llc -verify-machineinstrs -enable-machine-outliner -mtriple \ |
| ; RUN-V83A: aarch64-arm-none-eabi -mattr=+v8.3a %s -o - > %t |
| ; RUN-V83A: FileCheck --check-prefixes CHECK,V83A < %t %s |
| |
| define i64 @a(i64 %x) "sign-return-address"="non-leaf" "sign-return-address-key"="b_key" { |
| ; CHECK-LABEL: a: // @a |
| ; CHECK: .cfi_b_key_frame |
| ; V8A-NEXT: hint #27 |
| ; V83A-NEXT: pacibsp |
| ; CHECK-NEXT: .cfi_negate_ra_state |
| %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, i32* %1, align 4 |
| store i32 2, i32* %2, align 4 |
| store i32 3, i32* %3, align 4 |
| store i32 4, i32* %4, align 4 |
| store i32 5, i32* %5, align 4 |
| store i32 6, i32* %6, align 4 |
| call void asm sideeffect "mov x30, $0", "r,~{lr}"(i64 %x) #1 |
| ret i64 %x |
| } |
| |
| define i64 @b(i64 %x) "sign-return-address"="non-leaf" "sign-return-address-key"="b_key" { |
| ; CHECK-LABEL: b: // @b |
| ; CHECK: .cfi_b_key_frame |
| ; V8A-NEXT: hint #27 |
| ; V83A-NEXT: pacibsp |
| ; CHECK-NEXT: .cfi_negate_ra_state |
| %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, i32* %1, align 4 |
| store i32 2, i32* %2, align 4 |
| store i32 3, i32* %3, align 4 |
| store i32 4, i32* %4, align 4 |
| store i32 5, i32* %5, align 4 |
| store i32 6, i32* %6, align 4 |
| call void asm sideeffect "mov x30, $0", "r,~{lr}"(i64 %x) #1 |
| ret i64 %x |
| } |
| |
| define i64 @c(i64 %x) "sign-return-address"="non-leaf" "sign-return-address-key"="b_key" { |
| ; CHECK-LABEL: c: // @c |
| ; CHECK: .cfi_b_key_frame |
| ; V8A-NEXT: hint #27 |
| ; V83A-NEXT: pacibsp |
| ; CHECK-NEXT: .cfi_negate_ra_state |
| %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, i32* %1, align 4 |
| store i32 2, i32* %2, align 4 |
| store i32 3, i32* %3, align 4 |
| store i32 4, i32* %4, align 4 |
| store i32 5, i32* %5, align 4 |
| store i32 6, i32* %6, align 4 |
| call void asm sideeffect "mov x30, $0", "r,~{lr}"(i64 %x) #1 |
| ret i64 %x |
| } |
| |
| ; Outlined function is leaf-function => don't sign it |
| ; CHECK-LABEL: OUTLINED_FUNCTION_0: |
| ; CHECK-NOT: .cfi_b_key_frame |
| ; CHECK-NOT: paci{{[a,b]}}sp |
| ; CHECK-NOT: hint #2{{[5,7]}} |
| ; CHECK-NOT: .cfi_negate_ra_state |
| ; CHECK-NOT: auti{{[a,b]}}sp |