105 lines
2.9 KiB
LLVM
105 lines
2.9 KiB
LLVM
; RUN: llc -verify-machineinstrs -O3 -mtriple=x86_64-apple-macosx -enable-implicit-null-checks < %s | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-apple-macosx -enable-implicit-null-checks \
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; RUN: | llvm-mc -triple x86_64-apple-macosx -filetype=obj -o - \
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; RUN: | llvm-objdump --triple=x86_64-apple-macosx --fault-map-section - \
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; RUN: | FileCheck %s -check-prefix OBJDUMP
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; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -enable-implicit-null-checks \
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; RUN: | llvm-mc -triple x86_64-unknown-linux-gnu -filetype=obj -o - \
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; RUN: | llvm-objdump --triple=x86_64-unknown-linux-gnu --fault-map-section - \
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; RUN: | FileCheck %s -check-prefix OBJDUMP
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;; The tests in this file exist just to check basic validity of the FaultMap
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;; section. Please don't add to this file unless you're testing the FaultMap
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;; serialization code itself.
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define i32 @imp_null_check_load(i32* %x) {
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; CHECK-LABEL: _imp_null_check_load:
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; CHECK: [[BB0_imp_null_check_load:L[^:]+]]:
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; CHECK: movl (%rdi), %eax
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; CHECK: retq
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; CHECK: [[BB1_imp_null_check_load:LBB0_[0-9]+]]:
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; CHECK: movl $42, %eax
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; CHECK: retq
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entry:
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%c = icmp eq i32* %x, null
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br i1 %c, label %is_null, label %not_null, !make.implicit !0
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is_null:
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ret i32 42
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not_null:
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%t = load i32, i32* %x
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ret i32 %t
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}
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define void @imp_null_check_store(i32* %x) {
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; CHECK-LABEL: _imp_null_check_store:
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; CHECK: [[BB0_imp_null_check_store:L[^:]+]]:
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; CHECK: movl $1, (%rdi)
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; CHECK: retq
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; CHECK: [[BB1_imp_null_check_store:LBB1_[0-9]+]]:
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; CHECK: retq
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entry:
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%c = icmp eq i32* %x, null
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br i1 %c, label %is_null, label %not_null, !make.implicit !0
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is_null:
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ret void
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not_null:
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store i32 1, i32* %x
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ret void
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}
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!0 = !{}
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; CHECK-LABEL: __LLVM_FaultMaps:
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; Version:
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; CHECK-NEXT: .byte 1
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; Reserved x2
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; CHECK-NEXT: .byte 0
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; CHECK-NEXT: .short 0
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; # functions:
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; CHECK-NEXT: .long 2
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; FunctionAddr:
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; CHECK-NEXT: .quad _imp_null_check_load
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; NumFaultingPCs
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; CHECK-NEXT: .long 1
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; Reserved:
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; CHECK-NEXT: .long 0
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; Fault[0].Type:
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; CHECK-NEXT: .long 1
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; Fault[0].FaultOffset:
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; CHECK-NEXT: .long [[BB0_imp_null_check_load]]-_imp_null_check_load
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; Fault[0].HandlerOffset:
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; CHECK-NEXT: .long [[BB1_imp_null_check_load]]-_imp_null_check_load
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; FunctionAddr:
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; CHECK-NEXT: .quad _imp_null_check_store
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; NumFaultingPCs
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; CHECK-NEXT: .long 1
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; Reserved:
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; CHECK-NEXT: .long 0
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; Fault[0].Type:
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; CHECK-NEXT: .long 3
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; Fault[0].FaultOffset:
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; CHECK-NEXT: .long [[BB0_imp_null_check_store]]-_imp_null_check_store
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; Fault[0].HandlerOffset:
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; CHECK-NEXT: .long [[BB1_imp_null_check_store]]-_imp_null_check_store
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; OBJDUMP: FaultMap table:
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; OBJDUMP-NEXT: Version: 0x1
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; OBJDUMP-NEXT: NumFunctions: 2
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; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1
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; OBJDUMP-NEXT: Fault kind: FaultingLoad, faulting PC offset: 0, handling PC offset: 3
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; OBJDUMP-NEXT: FunctionAddress: 0x000000, NumFaultingPCs: 1
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; OBJDUMP-NEXT: Fault kind: FaultingStore, faulting PC offset: 0, handling PC offset: 7
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