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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

108 lines
3.7 KiB
C

// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - | FileCheck %s --check-prefix=DEFAULT
// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -fwrapv | FileCheck %s --check-prefix=WRAPV
// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -ftrapv | FileCheck %s --check-prefix=TRAPV
// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -fsanitize=signed-integer-overflow | FileCheck %s --check-prefixes=CATCH_UB,NOCATCH_UB_POINTER
// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -fsanitize=signed-integer-overflow -fwrapv | FileCheck %s --check-prefixes=CATCH_UB,NOCATCH_UB_POINTER
// RUN: %clang_cc1 -triple x86_64-apple-darwin %s -emit-llvm -o - -ftrapv -ftrapv-handler foo | FileCheck %s --check-prefix=TRAPV_HANDLER
// Tests for signed integer overflow stuff.
void test1(void) {
// DEFAULT-LABEL: define{{.*}} void @test1
// WRAPV-LABEL: define{{.*}} void @test1
// TRAPV-LABEL: define{{.*}} void @test1
extern volatile int f11G, a, b;
// DEFAULT: add nsw i32
// WRAPV: add i32
// TRAPV: llvm.sadd.with.overflow.i32
// CATCH_UB: llvm.sadd.with.overflow.i32
// TRAPV_HANDLER: foo(
f11G = a + b;
// DEFAULT: sub nsw i32
// WRAPV: sub i32
// TRAPV: llvm.ssub.with.overflow.i32
// CATCH_UB: llvm.ssub.with.overflow.i32
// TRAPV_HANDLER: foo(
f11G = a - b;
// DEFAULT: mul nsw i32
// WRAPV: mul i32
// TRAPV: llvm.smul.with.overflow.i32
// CATCH_UB: llvm.smul.with.overflow.i32
// TRAPV_HANDLER: foo(
f11G = a * b;
// DEFAULT: sub nsw i32 0,
// WRAPV: sub i32 0,
// TRAPV: llvm.ssub.with.overflow.i32(i32 0
// CATCH_UB: llvm.ssub.with.overflow.i32(i32 0
// TRAPV_HANDLER: foo(
f11G = -a;
// PR7426 - Overflow checking for increments.
// DEFAULT: add nsw i32 {{.*}}, 1
// WRAPV: add i32 {{.*}}, 1
// TRAPV: llvm.sadd.with.overflow.i32({{.*}}, i32 1)
// CATCH_UB: llvm.sadd.with.overflow.i32({{.*}}, i32 1)
// TRAPV_HANDLER: foo(
++a;
// DEFAULT: add nsw i32 {{.*}}, -1
// WRAPV: add i32 {{.*}}, -1
// TRAPV: llvm.ssub.with.overflow.i32({{.*}}, i32 1)
// CATCH_UB: llvm.ssub.with.overflow.i32({{.*}}, i32 1)
// TRAPV_HANDLER: foo(
--a;
// -fwrapv does not affect inbounds for GEP's.
// This is controlled by -fwrapv-pointer instead.
extern int* P;
++P;
// DEFAULT: getelementptr inbounds nuw i32, ptr
// WRAPV: getelementptr inbounds nuw i32, ptr
// TRAPV: getelementptr inbounds nuw i32, ptr
// NOCATCH_UB_POINTER: getelementptr inbounds nuw i32, ptr
// PR9350: char pre-increment never overflows.
extern volatile signed char PR9350_char_inc;
// DEFAULT: add i8 {{.*}}, 1
// WRAPV: add i8 {{.*}}, 1
// TRAPV: add i8 {{.*}}, 1
// CATCH_UB: add i8 {{.*}}, 1
++PR9350_char_inc;
// PR9350: char pre-decrement never overflows.
extern volatile signed char PR9350_char_dec;
// DEFAULT: add i8 {{.*}}, -1
// WRAPV: add i8 {{.*}}, -1
// TRAPV: add i8 {{.*}}, -1
// CATCH_UB: add i8 {{.*}}, -1
--PR9350_char_dec;
// PR9350: short pre-increment never overflows.
extern volatile signed short PR9350_short_inc;
// DEFAULT: add i16 {{.*}}, 1
// WRAPV: add i16 {{.*}}, 1
// TRAPV: add i16 {{.*}}, 1
// CATCH_UB: add i16 {{.*}}, 1
++PR9350_short_inc;
// PR9350: short pre-decrement never overflows.
extern volatile signed short PR9350_short_dec;
// DEFAULT: add i16 {{.*}}, -1
// WRAPV: add i16 {{.*}}, -1
// TRAPV: add i16 {{.*}}, -1
// CATCH_UB: add i16 {{.*}}, -1
--PR9350_short_dec;
// PR24256: don't instrument __builtin_frame_address.
__builtin_frame_address(0 + 0);
// DEFAULT: call ptr @llvm.frameaddress.p0(i32 0)
// WRAPV: call ptr @llvm.frameaddress.p0(i32 0)
// TRAPV: call ptr @llvm.frameaddress.p0(i32 0)
// CATCH_UB: call ptr @llvm.frameaddress.p0(i32 0)
}