asm.cpp
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// RUN: %clang_analyze_cc1 -triple x86_64-unknown-linux -analyzer-checker=alpha.clone.CloneChecker -analyzer-config alpha.clone.CloneChecker:MinimumCloneComplexity=10 -verify %s
// expected-no-diagnostics
int foo1(int src) {
int dst = src;
if (src < 100 && src > 0) {
asm ("mov %1, %0\n\t"
"add $1, %0"
: "=r" (dst)
: "r" (src));
}
return dst;
}
// Identical to foo1 except that it adds two instead of one, so it's no clone.
int foo2(int src) {
int dst = src;
if (src < 100 && src > 0) {
asm ("mov %1, %0\n\t"
"add $2, %0"
: "=r" (dst)
: "r" (src));
}
return dst;
}
// Identical to foo1 except that its a volatile asm statement, so it's no clone.
int foo3(int src) {
int dst = src;
if (src < 100 && src > 0) {
asm volatile ("mov %1, %0\n\t"
"add $1, %0"
: "=r" (dst)
: "r" (src));
}
return dst;
}