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llvm-project/clang/test/CodeGen/catch-implicit-signed-integer-truncations-incdec.c
Tim Northover c5978f42ec UBSAN: emit distinctive traps 
Sometimes people get minimal crash reports after a UBSAN incident. This change
tags each trap with an integer representing the kind of failure encountered,
which can aid in tracking down the root cause of the problem.
2020-12-08 10:28:26 +00:00

304 lines
23 KiB
C
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// RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-NOSANITIZE
// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation -fno-sanitize-recover=implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE
// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation -fsanitize-recover=implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER
// RUN: %clang_cc1 -fsanitize=implicit-signed-integer-truncation -fsanitize-trap=implicit-signed-integer-truncation -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[INT:.*]] = {{.*}} c"'int'\00" }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[UNSIGNED_SHORT:.*]] = {{.*}} c"'unsigned short'\00" }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_100:.*]] = {{.*}}, i32 100, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_200:.*]] = {{.*}}, i32 200, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_300:.*]] = {{.*}}, i32 300, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_400:.*]] = {{.*}}, i32 400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_SHORT]], i8 2 }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[SHORT:.*]] = {{.*}} c"'short'\00" }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_500:.*]] = {{.*}}, i32 500, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_600:.*]] = {{.*}}, i32 600, i32 11 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_700:.*]] = {{.*}}, i32 700, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 }
// CHECK-SANITIZE-ANYRECOVER-DAG: @[[LINE_800:.*]] = {{.*}}, i32 800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SHORT]], i8 2 }
unsigned short t0(unsigned short x) {
// CHECK-NOSANITIZE-LABEL: @t0(
// CHECK-NOSANITIZE-NEXT: entry:
// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1
// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]]
//
// CHECK-SANITIZE-LABEL: @t0(
// CHECK-SANITIZE-NEXT: entry:
// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32
// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize
// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize
// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize
// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]:
// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 7){{.*}}, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize
// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize
// CHECK-SANITIZE: [[CONT]]:
// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]]
#line 100
return x++;
}
unsigned short t1(unsigned short x) {
// CHECK-NOSANITIZE-LABEL: @t1(
// CHECK-NOSANITIZE-NEXT: entry:
// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1
// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]]
//
// CHECK-SANITIZE-LABEL: @t1(
// CHECK-SANITIZE-NEXT: entry:
// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32
// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize
// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize
// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize
// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]:
// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 7){{.*}}, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize
// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize
// CHECK-SANITIZE: [[CONT]]:
// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]]
#line 200
return x--;
}
unsigned short t2(unsigned short x) {
// CHECK-NOSANITIZE-LABEL: @t2(
// CHECK-NOSANITIZE-NEXT: entry:
// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1
// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]]
//
// CHECK-SANITIZE-LABEL: @t2(
// CHECK-SANITIZE-NEXT: entry:
// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32
// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize
// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize
// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize
// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]:
// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 7){{.*}}, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize
// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_300]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_300]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize
// CHECK-SANITIZE: [[CONT]]:
// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]]
#line 300
return ++x;
}
unsigned short t3(unsigned short x) {
// CHECK-NOSANITIZE-LABEL: @t3(
// CHECK-NOSANITIZE-NEXT: entry:
// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1
// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]]
//
// CHECK-SANITIZE-LABEL: @t3(
// CHECK-SANITIZE-NEXT: entry:
// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = zext i16 [[X_RELOADED]] to i32
// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize
// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize
// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize
// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]:
// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 7){{.*}}, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize
// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize
// CHECK-SANITIZE: [[CONT]]:
// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]]
#line 400
return --x;
}
signed short t4(signed short x) {
// CHECK-NOSANITIZE-LABEL: @t4(
// CHECK-NOSANITIZE-NEXT: entry:
// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1
// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]]
//
// CHECK-SANITIZE-LABEL: @t4(
// CHECK-SANITIZE-NEXT: entry:
// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32
// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = sext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize
// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize
// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize
// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]:
// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 7){{.*}}, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize
// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize
// CHECK-SANITIZE: [[CONT]]:
// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]]
#line 500
return x++;
}
signed short t5(signed short x) {
// CHECK-NOSANITIZE-LABEL: @t5(
// CHECK-NOSANITIZE-NEXT: entry:
// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1
// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: ret i16 [[X_RELOADED]]
//
// CHECK-SANITIZE-LABEL: @t5(
// CHECK-SANITIZE-NEXT: entry:
// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32
// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = sext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize
// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize
// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize
// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]:
// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 7){{.*}}, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize
// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize
// CHECK-SANITIZE: [[CONT]]:
// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: ret i16 [[X_RELOADED]]
#line 600
return x--;
}
signed short t6(signed short x) {
// CHECK-NOSANITIZE-LABEL: @t6(
// CHECK-NOSANITIZE-NEXT: entry:
// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], 1
// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]]
//
// CHECK-SANITIZE-LABEL: @t6(
// CHECK-SANITIZE-NEXT: entry:
// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32
// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], 1
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = sext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize
// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize
// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize
// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]:
// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 7){{.*}}, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize
// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize
// CHECK-SANITIZE: [[CONT]]:
// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]]
#line 700
return ++x;
}
signed short t7(signed short x) {
// CHECK-NOSANITIZE-LABEL: @t7(
// CHECK-NOSANITIZE-NEXT: entry:
// CHECK-NOSANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-NOSANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: [[INC:%.*]] = add i16 [[X_RELOADED]], -1
// CHECK-NOSANITIZE-NEXT: store i16 [[INC]], i16* [[X_ADDR]], align 2
// CHECK-NOSANITIZE-NEXT: ret i16 [[INC]]
//
// CHECK-SANITIZE-LABEL: @t7(
// CHECK-SANITIZE-NEXT: entry:
// CHECK-SANITIZE-NEXT: [[X_ADDR:%.*]] = alloca i16, align 2
// CHECK-SANITIZE-NEXT: store i16 [[X:%.*]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_RELOADED:%.*]] = load i16, i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: [[X_PROMOTED:%.*]] = sext i16 [[X_RELOADED]] to i32
// CHECK-SANITIZE-NEXT: [[INC:%.*]] = add i32 [[X_PROMOTED]], -1
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED:%.*]] = trunc i32 [[INC]] to i16
// CHECK-SANITIZE-NEXT: [[X_PROMOTED_DEMOTED_PROMOTED:%.*]] = sext i16 [[X_PROMOTED_DEMOTED]] to i32, !nosanitize
// CHECK-SANITIZE-NEXT: [[TRUNCHECK:%.*]] = icmp eq i32 [[X_PROMOTED_DEMOTED_PROMOTED]], [[INC]], !nosanitize
// CHECK-SANITIZE-NEXT: br i1 [[TRUNCHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_X_PROMOTEDERSION:[^,]+]],{{.*}} !nosanitize
// CHECK-SANITIZE: [[HANDLER_IMPLICIT_X_PROMOTEDERSION]]:
// CHECK-SANITIZE-TRAP-NEXT: call void @llvm.ubsantrap(i8 7){{.*}}, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP1:%.*]] = zext i32 [[INC]] to i64, !nosanitize
// CHECK-SANITIZE-ANYRECOVER-NEXT: [[TMP2:%.*]] = zext i16 [[X_PROMOTED_DEMOTED]] to i64, !nosanitize
// CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800]] to i8*), i64 [[TMP1]], i64 [[TMP2]]) #2, !nosanitize
// CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
// CHECK-SANITIZE-RECOVER-NEXT: br label %[[CONT]], !nosanitize
// CHECK-SANITIZE: [[CONT]]:
// CHECK-SANITIZE-NEXT: store i16 [[X_PROMOTED_DEMOTED]], i16* [[X_ADDR]], align 2
// CHECK-SANITIZE-NEXT: ret i16 [[X_PROMOTED_DEMOTED]]
#line 800
return --x;
}
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