forked from OSchip/llvm-project
31 lines
1.0 KiB
C
31 lines
1.0 KiB
C
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s \
|
|
// RUN: -fsanitize=signed-integer-overflow \
|
|
// RUN: | FileCheck %s --check-prefix=CHECK
|
|
|
|
// Verify we emit constants for "immediate" inline assembly arguments.
|
|
// Emitting a scalar expression can make the immediate be generated as
|
|
// overflow intrinsics, if the overflow sanitizer is enabled.
|
|
|
|
// Check both 'i' and 'I':
|
|
// - 'i' accepts symbolic constants.
|
|
// - 'I' doesn't, and is really an immediate-required constraint.
|
|
|
|
// See also PR23517.
|
|
|
|
// CHECK-LABEL: @test_inlineasm_i
|
|
// CHECK: call void asm sideeffect "int $0", "i{{.*}}"(i32 2)
|
|
void test_inlineasm_i() {
|
|
__asm__ __volatile__("int %0" :: "i"(1 + 1));
|
|
}
|
|
|
|
// CHECK-LABEL: @test_inlineasm_I
|
|
// CHECK: call void asm sideeffect "int $0", "I{{.*}}"(i32 2)
|
|
// CHECK: call void asm sideeffect "int $0", "I{{.*}}"(i32 3)
|
|
void test_inlineasm_I() {
|
|
__asm__ __volatile__("int %0" :: "I"(1 + 1));
|
|
|
|
// Also check a C non-ICE.
|
|
static const int N = 1;
|
|
__asm__ __volatile__("int %0" :: "I"(N + 2));
|
|
}
|