; RUN: llc -mtriple=x86_64-unknown-linux-gnu -verify-machineinstrs < %s | FileCheck %s --check-prefix=ASM ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -verify-machineinstrs -stop-after=finalize-isel < %s | FileCheck %s --check-prefixes=MIR,ISEL ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -verify-machineinstrs -stop-after=kcfi < %s | FileCheck %s --check-prefixes=MIR,KCFI ; ASM: .p2align 4, 0x90 ; ASM: .type __cfi_f1,@function ; ASM-LABEL: __cfi_f1: ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: nop ; ASM-NEXT: movl $12345678, %eax ; ASM-LABEL: .Lcfi_func_end0: ; ASM-NEXT: .size __cfi_f1, .Lcfi_func_end0-__cfi_f1 define void @f1(ptr noundef %x) !kcfi_type !1 { ; ASM-LABEL: f1: ; ASM: # %bb.0: ; ASM: movl $4282621618, %r10d # imm = 0xFF439EB2 ; ASM-NEXT: addl -4(%rdi), %r10d ; ASM-NEXT: je .Ltmp0 ; ASM-NEXT: .Ltmp1: ; ASM-NEXT: ud2 ; ASM-NEXT: .section .kcfi_traps,"ao",@progbits,.text ; ASM-NEXT: .Ltmp2: ; ASM-NEXT: .long .Ltmp1-.Ltmp2 ; ASM-NEXT: .text ; ASM-NEXT: .Ltmp0: ; ASM-NEXT: callq *%rdi ; MIR-LABEL: name: f1 ; MIR: body: ; ISEL: CALL64r %0, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, cfi-type 12345678 ; KCFI: BUNDLE{{.*}} { ; KCFI-NEXT: KCFI_CHECK $rdi, 12345678, implicit-def $r10, implicit-def $r11, implicit-def $eflags ; KCFI-NEXT: CALL64r killed $rdi, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp ; KCFI-NEXT: } call void %x() [ "kcfi"(i32 12345678) ] ret void } ; ASM-NOT: __cfi_f2: define void @f2(ptr noundef %x) { ; ASM-LABEL: f2: ; MIR-LABEL: name: f2 ; MIR: body: ; ISEL: TCRETURNri64 %0, 0, csr_64, implicit $rsp, implicit $ssp, cfi-type 12345678 ; KCFI: BUNDLE{{.*}} { ; KCFI-NEXT: KCFI_CHECK $rdi, 12345678, implicit-def $r10, implicit-def $r11, implicit-def $eflags ; KCFI-NEXT: TAILJMPr64 killed $rdi, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp ; KCFI-NEXT: } tail call void %x() [ "kcfi"(i32 12345678) ] ret void } ; ASM-NOT: __cfi_f3: define void @f3(ptr noundef %x) #0 { ; ASM-LABEL: f3: ; MIR-LABEL: name: f3 ; MIR: body: ; ISEL: CALL64pcrel32 &__llvm_retpoline_r11, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit killed $r11, cfi-type 12345678 ; KCFI: BUNDLE{{.*}} { ; KCFI-NEXT: KCFI_CHECK $r11, 12345678, implicit-def $r10, implicit-def $r11, implicit-def $eflags ; KCFI-NEXT: CALL64pcrel32 &__llvm_retpoline_r11, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, implicit internal killed $r11 ; KCFI-NEXT: } call void %x() [ "kcfi"(i32 12345678) ] ret void } ; ASM-NOT: __cfi_f4: define void @f4(ptr noundef %x) #0 { ; ASM-LABEL: f4: ; MIR-LABEL: name: f4 ; MIR: body: ; ISEL: TCRETURNdi64 &__llvm_retpoline_r11, 0, csr_64, implicit $rsp, implicit $ssp, implicit killed $r11, cfi-type 12345678 ; KCFI: BUNDLE{{.*}} { ; KCFI-NEXT: KCFI_CHECK $r11, 12345678, implicit-def $r10, implicit-def $r11, implicit-def $eflags ; KCFI-NEXT: TAILJMPd64 &__llvm_retpoline_r11, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp, implicit internal killed $r11 ; KCFI-NEXT: } tail call void %x() [ "kcfi"(i32 12345678) ] ret void } ;; Ensure we emit Value + 1 for unwanted values (e.g. endbr64 == 4196274163). ; ASM-LABEL: __cfi_f5: ; ASM: movl $4196274164, %eax # imm = 0xFA1E0FF4 define void @f5(ptr noundef %x) !kcfi_type !2 { ; ASM-LABEL: f5: ; ASM: movl $98693132, %r10d # imm = 0x5E1F00C tail call void %x() [ "kcfi"(i32 4196274163) ] ret void } ;; Ensure we emit Value + 1 for unwanted values (e.g. -endbr64 == 98693133). ; ASM-LABEL: __cfi_f6: ; ASM: movl $98693134, %eax # imm = 0x5E1F00E define void @f6(ptr noundef %x) !kcfi_type !3 { ; ASM-LABEL: f6: ; ASM: movl $4196274162, %r10d # imm = 0xFA1E0FF2 tail call void %x() [ "kcfi"(i32 98693133) ] ret void } @g = external local_unnamed_addr global ptr, align 8 define void @f7() { ; MIR-LABEL: name: f7 ; MIR: body: ; ISEL: TCRETURNmi64 killed %0, 1, $noreg, 0, $noreg, 0, csr_64, implicit $rsp, implicit $ssp, cfi-type 12345678 ; KCFI: $r11 = MOV64rm killed renamable $rax, 1, $noreg, 0, $noreg ; KCFI-NEXT: BUNDLE{{.*}} { ; KCFI-NEXT: KCFI_CHECK $r11, 12345678, implicit-def $r10, implicit-def $r11, implicit-def $eflags ; KCFI-NEXT: TAILJMPr64 internal $r11, csr_64, implicit $rsp, implicit $ssp, implicit $rsp, implicit $ssp ; KCFI-NEXT: } %1 = load ptr, ptr @g, align 8 tail call void %1() [ "kcfi"(i32 12345678) ] ret void } define void @f8() { ; MIR-LABEL: name: f8 ; MIR: body: ; ISEL: CALL64m killed %0, 1, $noreg, 0, $noreg, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp, cfi-type 12345678 ; KCFI: $r11 = MOV64rm killed renamable $rax, 1, $noreg, 0, $noreg ; KCFI-NEXT: BUNDLE{{.*}} { ; KCFI-NEXT: KCFI_CHECK $r11, 12345678, implicit-def $r10, implicit-def $r11, implicit-def $eflags ; KCFI-NEXT: CALL64r internal $r11, csr_64, implicit $rsp, implicit $ssp, implicit-def $rsp, implicit-def $ssp ; KCFI-NEXT: } %1 = load ptr, ptr @g, align 8 call void %1() [ "kcfi"(i32 12345678) ] ret void } attributes #0 = { "target-features"="+retpoline-indirect-branches,+retpoline-indirect-calls" } !llvm.module.flags = !{!0} !0 = !{i32 4, !"kcfi", i32 1} !1 = !{i32 12345678} !2 = !{i32 4196274163} !3 = !{i32 98693133}