Instead of doing an explicit test, we can use the flags off the sar. This
occurs in a bigger testcase like this, which is pretty common:
-#include <vector>
-
-
-int test1(std::vector<int> &X) {
- int Sum = 0;
- for (long i = 0, e = X.size(); i != e; ++i)
- X[i] = 0;
- return Sum;
-}
-compiles into:
-
- movq %rsi, %rbx
- movl %edi, %r14d
- sarl $2, %r14d
- testl %r14d, %r14d
- je LBB0_2
-
-Instead of doing an explicit test, we can use the flags off the sar. This
-occurs in a bigger testcase like this, which is pretty common:
-
-#include <vector>
-
-
-int test1(std::vector<int> &X) {
- int Sum = 0;
- for (long i = 0, e = X.size(); i != e; ++i)
- X[i] = 0;
- return Sum;
-}
-compiles into:
-
- movq %rsi, %rbx
- movl %edi, %r14d
- sarl $2, %r14d
- testl %r14d, %r14d
- je LBB0_2
-
-Instead of doing an explicit test, we can use the flags off the sar. This
-occurs in a bigger testcase like this, which is pretty common:
-
-#include <vector>
-
-
-int test1(std::vector<int> &X) {
- int Sum = 0;
- for (long i = 0, e = X.size(); i != e; ++i)
- X[i] = 0;
- return Sum;
-}
-compiles into:
-
- movq %rsi, %rbx
- movl %edi, %r14d
- sarl $2, %r14d
- testl %r14d, %r14d
- je LBB0_2
-
-Instead of doing an explicit test, we can use the flags off the sar. This
-occurs in a bigger testcase like this, which is pretty common in bootstrap:
-
#include <vector>
int test1(std::vector<int> &X) {
int Sum = 0;