mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-23 20:44:51 +00:00
0837bf4c51
How code is optimized sometimes, perhaps often, depends on the context into
which it was inlined. This change allows llvm-opt-report to track the
differences between the optimizations performed, or not, in different contexts,
and when these differ, display those differences.
For example, this code:
$ cat /tmp/q.cpp
void bar();
void foo(int n) {
for (int i = 0; i < n; ++i)
bar();
}
void quack() {
foo(4);
}
void quack2() {
foo(4);
}
will now produce this report:
< /home/hfinkel/src/llvm/test/tools/llvm-opt-report/Inputs/q.cpp
2 | void bar();
3 | void foo(int n) {
[[
> foo(int):
4 | for (int i = 0; i < n; ++i)
> quack(), quack2():
4 U4 | for (int i = 0; i < n; ++i)
]]
5 | bar();
6 | }
7 |
8 | void quack() {
9 I | foo(4);
10 | }
11 |
12 | void quack2() {
13 I | foo(4);
14 | }
15 |
Note that the tool has demangled the function names, and grouped the reports
associated with line 4. This shows that the loop on line 4 was unrolled by a
factor of 4 when inlined into the functions quack() and quack2(), but not in
the function foo(int) itself.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283402 91177308-0d34-0410-b5e6-96231b3b80d8
|
||
|---|---|---|
| .. | ||
| dsymutil | ||
| gold | ||
| llvm-ar | ||
| llvm-config | ||
| llvm-cov | ||
| llvm-cxxdump | ||
| llvm-dwp | ||
| llvm-lit | ||
| llvm-lto | ||
| llvm-lto2 | ||
| llvm-mc | ||
| llvm-nm | ||
| llvm-objdump | ||
| llvm-opt-report | ||
| llvm-pdbdump | ||
| llvm-profdata | ||
| llvm-readobj | ||
| llvm-size | ||
| llvm-split | ||
| llvm-symbolizer | ||
| lto | ||
| sancov | ||
| sanstats | ||
| yaml2obj | ||