forked from OSchip/llvm-project
[Tests] Expand implicit null check coverage
llvm-svn: 356004
This commit is contained in:
Philip Reames
parent
0b29af0f7c
commit
80ccc88869
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@ -100,15 +100,73 @@ define i32 @imp_null_check_volatile_load(i32* %x) {
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}
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define i8 @imp_null_check_load_i8(i8* %x) {
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; CHECK-LABEL: imp_null_check_load_i8:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp1:
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; CHECK-NEXT: movb (%rdi), %al ## on-fault: LBB4_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB4_1: ## %is_null
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; CHECK-NEXT: movb $42, %al
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; CHECK-NEXT: retq
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entry:
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%c = icmp eq i8* %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 i8 42
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not_null:
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%t = load i8, i8* %x
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ret i8 %t
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}
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define i256 @imp_null_check_load_i256(i256* %x) {
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; CHECK-LABEL: imp_null_check_load_i256:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: movq %rdi, %rax
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; CHECK-NEXT: Ltmp2:
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; CHECK-NEXT: movq (%rsi), %rcx ## on-fault: LBB5_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: movq 8(%rsi), %rdx
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; CHECK-NEXT: movq 16(%rsi), %rdi
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; CHECK-NEXT: movq 24(%rsi), %rsi
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; CHECK-NEXT: movq %rsi, 24(%rax)
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; CHECK-NEXT: movq %rdi, 16(%rax)
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; CHECK-NEXT: movq %rdx, 8(%rax)
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; CHECK-NEXT: movq %rcx, (%rax)
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB5_1: ## %is_null
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; CHECK-NEXT: movq $0, 24(%rax)
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; CHECK-NEXT: movq $0, 16(%rax)
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; CHECK-NEXT: movq $0, 8(%rax)
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; CHECK-NEXT: movq $42, (%rax)
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; CHECK-NEXT: retq
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entry:
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%c = icmp eq i256* %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 i256 42
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not_null:
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%t = load i256, i256* %x
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ret i256 %t
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}
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define i32 @imp_null_check_gep_load(i32* %x) {
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; CHECK-LABEL: imp_null_check_gep_load:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp1:
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; CHECK-NEXT: movl 128(%rdi), %eax ## on-fault: LBB4_1
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; CHECK-NEXT: Ltmp3:
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; CHECK-NEXT: movl 128(%rdi), %eax ## on-fault: LBB6_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB4_1: ## %is_null
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; CHECK-NEXT: LBB6_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: retq
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@ -128,12 +186,12 @@ define i32 @imp_null_check_gep_load(i32* %x) {
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define i32 @imp_null_check_add_result(i32* %x, i32 %p) {
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; CHECK-LABEL: imp_null_check_add_result:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp2:
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; CHECK-NEXT: addl (%rdi), %esi ## on-fault: LBB5_1
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; CHECK-NEXT: Ltmp4:
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; CHECK-NEXT: addl (%rdi), %esi ## on-fault: LBB7_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: movl %esi, %eax
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB5_1: ## %is_null
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; CHECK-NEXT: LBB7_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: retq
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@ -150,16 +208,147 @@ define i32 @imp_null_check_add_result(i32* %x, i32 %p) {
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ret i32 %p1
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}
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define i32 @imp_null_check_sub_result(i32* %x, i32 %p) {
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; CHECK-LABEL: imp_null_check_sub_result:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp5:
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; CHECK-NEXT: movl (%rdi), %eax ## on-fault: LBB8_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: subl %esi, %eax
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB8_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: 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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%p1 = sub i32 %t, %p
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ret i32 %p1
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}
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define i32 @imp_null_check_mul_result(i32* %x, i32 %p) {
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; CHECK-LABEL: imp_null_check_mul_result:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp6:
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; CHECK-NEXT: imull (%rdi), %esi ## on-fault: LBB9_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: movl %esi, %eax
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB9_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: 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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%p1 = mul i32 %t, %p
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ret i32 %p1
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}
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define i32 @imp_null_check_udiv_result(i32* %x, i32 %p) {
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; CHECK-LABEL: imp_null_check_udiv_result:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp7:
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; CHECK-NEXT: movl (%rdi), %eax ## on-fault: LBB10_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: xorl %edx, %edx
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; CHECK-NEXT: divl %esi
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB10_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: 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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%p1 = udiv i32 %t, %p
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ret i32 %p1
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}
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define i32 @imp_null_check_shl_result(i32* %x, i32 %p) {
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; CHECK-LABEL: imp_null_check_shl_result:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp8:
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; CHECK-NEXT: movl (%rdi), %eax ## on-fault: LBB11_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: movl %esi, %ecx
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; CHECK-NEXT: shll %cl, %eax
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB11_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: 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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%p1 = shl i32 %t, %p
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ret i32 %p1
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}
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define i32 @imp_null_check_lshr_result(i32* %x, i32 %p) {
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; CHECK-LABEL: imp_null_check_lshr_result:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp9:
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; CHECK-NEXT: movl (%rdi), %eax ## on-fault: LBB12_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: movl %esi, %ecx
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; CHECK-NEXT: shrl %cl, %eax
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB12_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: 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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%p1 = lshr i32 %t, %p
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ret i32 %p1
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}
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define i32 @imp_null_check_hoist_over_unrelated_load(i32* %x, i32* %y, i32* %z) {
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; CHECK-LABEL: imp_null_check_hoist_over_unrelated_load:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp3:
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; CHECK-NEXT: movl (%rdi), %eax ## on-fault: LBB6_1
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; CHECK-NEXT: Ltmp10:
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; CHECK-NEXT: movl (%rdi), %eax ## on-fault: LBB13_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: movl (%rsi), %ecx
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; CHECK-NEXT: movl %ecx, (%rdx)
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB6_1: ## %is_null
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; CHECK-NEXT: LBB13_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: retq
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@ -180,17 +369,17 @@ define i32 @imp_null_check_hoist_over_unrelated_load(i32* %x, i32* %y, i32* %z)
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define i32 @imp_null_check_via_mem_comparision(i32* %x, i32 %val) {
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; CHECK-LABEL: imp_null_check_via_mem_comparision:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp4:
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; CHECK-NEXT: cmpl %esi, 4(%rdi) ## on-fault: LBB7_3
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; CHECK-NEXT: Ltmp11:
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; CHECK-NEXT: cmpl %esi, 4(%rdi) ## on-fault: LBB14_3
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; CHECK-NEXT: ## %bb.1: ## %not_null
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; CHECK-NEXT: jge LBB7_2
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; CHECK-NEXT: jge LBB14_2
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; CHECK-NEXT: ## %bb.4: ## %ret_100
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; CHECK-NEXT: movl $100, %eax
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB7_3: ## %is_null
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; CHECK-NEXT: LBB14_3: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB7_2: ## %ret_200
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; CHECK-NEXT: LBB14_2: ## %ret_200
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; CHECK-NEXT: movl $200, %eax
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; CHECK-NEXT: retq
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@ -218,13 +407,13 @@ define i32 @imp_null_check_gep_load_with_use_dep(i32* %x, i32 %a) {
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; CHECK-LABEL: imp_null_check_gep_load_with_use_dep:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: ## kill: def $esi killed $esi def $rsi
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; CHECK-NEXT: Ltmp5:
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; CHECK-NEXT: movl (%rdi), %eax ## on-fault: LBB8_1
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; CHECK-NEXT: Ltmp12:
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; CHECK-NEXT: movl (%rdi), %eax ## on-fault: LBB15_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: addl %edi, %esi
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; CHECK-NEXT: leal 4(%rax,%rsi), %eax
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB8_1: ## %is_null
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; CHECK-NEXT: LBB15_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: retq
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@ -247,11 +436,11 @@ define i32 @imp_null_check_gep_load_with_use_dep(i32* %x, i32 %a) {
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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: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp6:
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; CHECK-NEXT: movl $1, (%rdi) ## on-fault: LBB9_1
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; CHECK-NEXT: Ltmp13:
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; CHECK-NEXT: movl $1, (%rdi) ## on-fault: LBB16_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB9_1: ## %is_null
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; CHECK-NEXT: LBB16_1: ## %is_null
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; CHECK-NEXT: retq
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entry:
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@ -271,11 +460,11 @@ define void @imp_null_check_unordered_store(i32* %x) {
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; CHECK-LABEL: imp_null_check_unordered_store:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: testq %rdi, %rdi
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; CHECK-NEXT: je LBB10_1
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; CHECK-NEXT: je LBB17_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: movl $1, (%rdi)
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB10_1: ## %is_null
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; CHECK-NEXT: LBB17_1: ## %is_null
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; CHECK-NEXT: retq
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entry:
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@ -293,11 +482,11 @@ define void @imp_null_check_unordered_store(i32* %x) {
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define i32 @imp_null_check_neg_gep_load(i32* %x) {
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; CHECK-LABEL: imp_null_check_neg_gep_load:
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; CHECK: ## %bb.0: ## %entry
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; CHECK-NEXT: Ltmp7:
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; CHECK-NEXT: movl -128(%rdi), %eax ## on-fault: LBB11_1
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; CHECK-NEXT: Ltmp14:
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; CHECK-NEXT: movl -128(%rdi), %eax ## on-fault: LBB18_1
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; CHECK-NEXT: ## %bb.2: ## %not_null
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; CHECK-NEXT: retq
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; CHECK-NEXT: LBB11_1: ## %is_null
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; CHECK-NEXT: LBB18_1: ## %is_null
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: retq
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