| ; RUN: llc -verify-machineinstrs -O3 -mtriple=x86_64-apple-macosx -enable-implicit-null-checks < %s | FileCheck %s |
| |
| ; RUN: llc < %s -mtriple=x86_64-apple-macosx -enable-implicit-null-checks \ |
| ; RUN: | llvm-mc -triple x86_64-apple-macosx -filetype=obj -o - \ |
| ; RUN: | llvm-objdump -triple x86_64-apple-macosx -fault-map-section - \ |
| ; RUN: | FileCheck %s -check-prefix OBJDUMP |
| |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -enable-implicit-null-checks \ |
| ; RUN: | llvm-mc -triple x86_64-unknown-linux-gnu -filetype=obj -o - \ |
| ; RUN: | llvm-objdump -triple x86_64-unknown-linux-gnu -fault-map-section - \ |
| ; RUN: | FileCheck %s -check-prefix OBJDUMP |
| |
| define i32 @imp_null_check_load(i32* %x) { |
| ; CHECK-LABEL: _imp_null_check_load: |
| ; CHECK: [[BB0_imp_null_check_load:L[^:]+]]: |
| ; CHECK: movl (%rdi), %eax |
| ; CHECK: retq |
| ; CHECK: [[BB1_imp_null_check_load:LBB0_[0-9]+]]: |
| ; CHECK: movl $42, %eax |
| ; CHECK: retq |
| |
| entry: |
| %c = icmp eq i32* %x, null |
| br i1 %c, label %is_null, label %not_null, !make.implicit !0 |
| |
| is_null: |
| ret i32 42 |
| |
| not_null: |
| %t = load i32, i32* %x |
| ret i32 %t |
| } |
| |
| define i32 @imp_null_check_gep_load(i32* %x) { |
| ; CHECK-LABEL: _imp_null_check_gep_load: |
| ; CHECK: [[BB0_imp_null_check_gep_load:L[^:]+]]: |
| ; CHECK: movl 128(%rdi), %eax |
| ; CHECK: retq |
| ; CHECK: [[BB1_imp_null_check_gep_load:LBB1_[0-9]+]]: |
| ; CHECK: movl $42, %eax |
| ; CHECK: retq |
| |
| entry: |
| %c = icmp eq i32* %x, null |
| br i1 %c, label %is_null, label %not_null, !make.implicit !0 |
| |
| is_null: |
| ret i32 42 |
| |
| not_null: |
| %x.gep = getelementptr i32, i32* %x, i32 32 |
| %t = load i32, i32* %x.gep |
| ret i32 %t |
| } |
| |
| define i32 @imp_null_check_add_result(i32* %x, i32 %p) { |
| ; CHECK-LABEL: _imp_null_check_add_result: |
| ; CHECK: [[BB0_imp_null_check_add_result:L[^:]+]]: |
| ; CHECK: addl (%rdi), %esi |
| ; CHECK: movl %esi, %eax |
| ; CHECK: retq |
| ; CHECK: [[BB1_imp_null_check_add_result:LBB2_[0-9]+]]: |
| ; CHECK: movl $42, %eax |
| ; CHECK: retq |
| |
| entry: |
| %c = icmp eq i32* %x, null |
| br i1 %c, label %is_null, label %not_null, !make.implicit !0 |
| |
| is_null: |
| ret i32 42 |
| |
| not_null: |
| %t = load i32, i32* %x |
| %p1 = add i32 %t, %p |
| ret i32 %p1 |
| } |
| |
| define i32 @imp_null_check_hoist_over_unrelated_load(i32* %x, i32* %y, i32* %z) { |
| ; CHECK-LABEL: _imp_null_check_hoist_over_unrelated_load: |
| ; CHECK: [[BB0_imp_null_check_hoist_over_unrelated_load:L[^:]+]]: |
| ; CHECK: movl (%rdi), %eax |
| ; CHECK: movl (%rsi), %ecx |
| ; CHECK: movl %ecx, (%rdx) |
| ; CHECK: retq |
| ; CHECK: [[BB1_imp_null_check_hoist_over_unrelated_load:LBB3_[0-9]+]]: |
| ; CHECK: movl $42, %eax |
| ; CHECK: retq |
| |
| entry: |
| %c = icmp eq i32* %x, null |
| br i1 %c, label %is_null, label %not_null, !make.implicit !0 |
| |
| is_null: |
| ret i32 42 |
| |
| not_null: |
| %t0 = load i32, i32* %y |
| %t1 = load i32, i32* %x |
| store i32 %t0, i32* %z |
| ret i32 %t1 |
| } |
| |
| define i32 @imp_null_check_via_mem_comparision(i32* %x, i32 %val) { |
| ; CHECK-LABEL: _imp_null_check_via_mem_comparision |
| ; CHECK: [[BB0_imp_null_check_via_mem_comparision:L[^:]+]]: |
| ; CHECK: cmpl %esi, 4(%rdi) |
| ; CHECK: jge LBB4_2 |
| ; CHECK: movl $100, %eax |
| ; CHECK: retq |
| ; CHECK: [[BB1_imp_null_check_via_mem_comparision:LBB4_[0-9]+]]: |
| ; CHECK: movl $42, %eax |
| ; CHECK: retq |
| ; CHECK: LBB4_2: |
| ; CHECK: movl $200, %eax |
| ; CHECK: retq |
| |
| entry: |
| %c = icmp eq i32* %x, null |
| br i1 %c, label %is_null, label %not_null, !make.implicit !0 |
| |
| is_null: |
| ret i32 42 |
| |
| not_null: |
| %x.loc = getelementptr i32, i32* %x, i32 1 |
| %t = load i32, i32* %x.loc |
| %m = icmp slt i32 %t, %val |
| br i1 %m, label %ret_100, label %ret_200 |
| |
| ret_100: |
| ret i32 100 |
| |
| ret_200: |
| ret i32 200 |
| } |
| |
| define i32 @imp_null_check_gep_load_with_use_dep(i32* %x, i32 %a) { |
| ; CHECK-LABEL: imp_null_check_gep_load_with_use_dep: |
| ; CHECK: [[BB0_imp_null_check_gep_load_with_use_dep:L[^:]+]]: |
| ; CHECK: movl (%rdi), %eax |
| ; CHECK: addl %edi, %esi |
| ; CHECK: leal 4(%rax,%rsi), %eax |
| ; CHECK: retq |
| ; CHECK: [[BB1_imp_null_check_gep_load_with_use_dep:LBB5_[0-9]+]]: |
| ; CHECK: movl $42, %eax |
| ; CHECK: retq |
| |
| entry: |
| %c = icmp eq i32* %x, null |
| br i1 %c, label %is_null, label %not_null, !make.implicit !0 |
| |
| is_null: |
| ret i32 42 |
| |
| not_null: |
| %x.loc = getelementptr i32, i32* %x, i32 1 |
| %y = ptrtoint i32* %x.loc to i32 |
| %b = add i32 %a, %y |
| %t = load i32, i32* %x |
| %z = add i32 %t, %b |
| ret i32 %z |
| } |
| |
| define void @imp_null_check_store(i32* %x) { |
| ; CHECK-LABEL: _imp_null_check_store: |
| ; CHECK: [[BB0_imp_null_check_store:L[^:]+]]: |
| ; CHECK: movl $1, (%rdi) |
| ; CHECK: retq |
| ; CHECK: [[BB1_imp_null_check_store:LBB6_[0-9]+]]: |
| ; CHECK: retq |
| |
| entry: |
| %c = icmp eq i32* %x, null |
| br i1 %c, label %is_null, label %not_null, !make.implicit !0 |
| |
| is_null: |
| ret void |
| |
| not_null: |
| store i32 1, i32* %x |
| ret void |
| } |
| |
| define i32 @imp_null_check_neg_gep_load(i32* %x) { |
| ; CHECK-LABEL: _imp_null_check_neg_gep_load: |
| ; CHECK: [[BB0_imp_null_check_neg_gep_load:L[^:]+]]: |
| ; CHECK: movl -128(%rdi), %eax |
| ; CHECK: retq |
| ; CHECK: [[BB1_imp_null_check_neg_gep_load:LBB7_[0-9]+]]: |
| ; CHECK: movl $42, %eax |
| ; CHECK: retq |
| |
| entry: |
| %c = icmp eq i32* %x, null |
| br i1 %c, label %is_null, label %not_null, !make.implicit !0 |
| |
| is_null: |
| ret i32 42 |
| |
| not_null: |
| %x.gep = getelementptr i32, i32* %x, i32 -32 |
| %t = load i32, i32* %x.gep |
| ret i32 %t |
| } |
| |
| !0 = !{} |
| |
| ; CHECK-LABEL: __LLVM_FaultMaps: |
| |
| ; Version: |
| ; CHECK-NEXT: .byte 1 |
| |
| ; Reserved x2 |
| ; CHECK-NEXT: .byte 0 |
| ; CHECK-NEXT: .short 0 |
| |
| ; # functions: |
| ; CHECK-NEXT: .long 8 |
| |
| ; FunctionAddr: |
| ; CHECK-NEXT: .quad _imp_null_check_add_result |
| ; NumFaultingPCs |
| ; CHECK-NEXT: .long 1 |
| ; Reserved: |
| ; CHECK-NEXT: .long 0 |
| ; Fault[0].Type: |
| ; CHECK-NEXT: .long 1 |
| ; Fault[0].FaultOffset: |
| ; CHECK-NEXT: .long [[BB0_imp_null_check_add_result]]-_imp_null_check_add_result |
| ; Fault[0].HandlerOffset: |
| ; CHECK-NEXT: .long [[BB1_imp_null_check_add_result]]-_imp_null_check_add_result |
| |
| ; FunctionAddr: |
| ; CHECK-NEXT: .quad _imp_null_check_gep_load |
| ; NumFaultingPCs |
| ; CHECK-NEXT: .long 1 |
| ; Reserved: |
| ; CHECK-NEXT: .long 0 |
| ; Fault[0].Type: |
| ; CHECK-NEXT: .long 1 |
| ; Fault[0].FaultOffset: |
| ; CHECK-NEXT: .long [[BB0_imp_null_check_gep_load]]-_imp_null_check_gep_load |
| ; Fault[0].HandlerOffset: |
| ; CHECK-NEXT: .long [[BB1_imp_null_check_gep_load]]-_imp_null_check_gep_load |
| |
| ; FunctionAddr: |
| ; CHECK-NEXT: .quad _imp_null_check_gep_load_with_use_dep |
| ; NumFaultingPCs |
| ; CHECK-NEXT: .long 1 |
| ; Reserved: |
| ; CHECK-NEXT: .long 0 |
| ; Fault[0].Type: |
| ; CHECK-NEXT: .long 1 |
| ; Fault[0].FaultOffset: |
| ; CHECK-NEXT: .long [[BB0_imp_null_check_gep_load_with_use_dep]]-_imp_null_check_gep_load_with_use_dep |
| ; Fault[0].HandlerOffset: |
| ; CHECK-NEXT: .long [[BB1_imp_null_check_gep_load_with_use_dep]]-_imp_null_check_gep_load_with_use_dep |
| |
| ; FunctionAddr: |
| ; CHECK-NEXT: .quad _imp_null_check_hoist_over_unrelated_load |
| ; NumFaultingPCs |
| ; CHECK-NEXT: .long 1 |
| ; Reserved: |
| ; CHECK-NEXT: .long 0 |
| ; Fault[0].Type: |
| ; CHECK-NEXT: .long 1 |
| ; Fault[0].FaultOffset: |
| ; CHECK-NEXT: .long [[BB0_imp_null_check_hoist_over_unrelated_load]]-_imp_null_check_hoist_over_unrelated_load |
| ; Fault[0].HandlerOffset: |
| ; CHECK-NEXT: .long [[BB1_imp_null_check_hoist_over_unrelated_load]]-_imp_null_check_hoist_over_unrelated_load |
| |
| ; FunctionAddr: |
| ; CHECK-NEXT: .quad _imp_null_check_load |
| ; NumFaultingPCs |
| ; CHECK-NEXT: .long 1 |
| ; Reserved: |
| ; CHECK-NEXT: .long 0 |
| ; Fault[0].Type: |
| ; CHECK-NEXT: .long 1 |
| ; Fault[0].FaultOffset: |
| ; CHECK-NEXT: .long [[BB0_imp_null_check_load]]-_imp_null_check_load |
| ; Fault[0].HandlerOffset: |
| ; CHECK-NEXT: .long [[BB1_imp_null_check_load]]-_imp_null_check_load |
| |
| ; FunctionAddr: |
| ; CHECK-NEXT: .quad _imp_null_check_neg_gep_load |
| ; NumFaultingPCs |
| ; CHECK-NEXT: .long 1 |
| ; Reserved: |
| ; CHECK-NEXT: .long 0 |
| ; Fault[0].Type: |
| ; CHECK-NEXT: .long 1 |
| ; Fault[0].FaultOffset: |
| ; CHECK-NEXT: .long [[BB0_imp_null_check_neg_gep_load]]-_imp_null_check_neg_gep_load |
| ; Fault[0].HandlerOffset: |
| ; CHECK-NEXT: .long [[BB1_imp_null_check_neg_gep_load]]-_imp_null_check_neg_gep_load |
| |
| ; FunctionAddr: |
| ; CHECK-NEXT: .quad _imp_null_check_store |
| ; NumFaultingPCs |
| ; CHECK-NEXT: .long 1 |
| ; Reserved: |
| ; CHECK-NEXT: .long 0 |
| ; Fault[0].Type: |
| ; CHECK-NEXT: .long 3 |
| ; Fault[0].FaultOffset: |
| ; CHECK-NEXT: .long [[BB0_imp_null_check_store]]-_imp_null_check_store |
| ; Fault[0].HandlerOffset: |
| ; CHECK-NEXT: .long [[BB1_imp_null_check_store]]-_imp_null_check_store |
| |
| ; FunctionAddr: |
| ; CHECK-NEXT: .quad _imp_null_check_via_mem_comparision |
| ; NumFaultingPCs |
| ; CHECK-NEXT: .long 1 |
| ; Reserved: |
| ; CHECK-NEXT: .long 0 |
| ; Fault[0].Type: |
| ; CHECK-NEXT: .long 1 |
| ; Fault[0].FaultOffset: |
| ; CHECK-NEXT: .long [[BB0_imp_null_check_via_mem_comparision]]-_imp_null_check_via_mem_comparision |
| ; Fault[0].HandlerOffset: |
| ; CHECK-NEXT: .long [[BB1_imp_null_check_via_mem_comparision]]-_imp_null_check_via_mem_comparision |
| |
| ; OBJDUMP: FaultMap table: |
| ; OBJDUMP-NEXT: Version: 0x1 |
| ; OBJDUMP-NEXT: NumFunctions: 8 |
| ; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1 |
| ; OBJDUMP-NEXT: Fault kind: FaultingLoad, faulting PC offset: 0, handling PC offset: 5 |
| ; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1 |
| ; OBJDUMP-NEXT: Fault kind: FaultingLoad, faulting PC offset: 0, handling PC offset: 7 |
| ; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1 |
| ; OBJDUMP-NEXT: Fault kind: FaultingLoad, faulting PC offset: 0, handling PC offset: 9 |
| ; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1 |
| ; OBJDUMP-NEXT: Fault kind: FaultingLoad, faulting PC offset: 0, handling PC offset: 7 |
| ; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1 |
| ; OBJDUMP-NEXT: Fault kind: FaultingLoad, faulting PC offset: 0, handling PC offset: 3 |
| ; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1 |
| ; OBJDUMP-NEXT: Fault kind: FaultingLoad, faulting PC offset: 0, handling PC offset: 4 |
| ; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1 |
| ; OBJDUMP-NEXT: Fault kind: FaultingStore, faulting PC offset: 0, handling PC offset: 7 |
| ; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1 |
| ; OBJDUMP-NEXT: Fault kind: FaultingLoad, faulting PC offset: 0, handling PC offset: 11 |