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[llvm-mca] fix formatting 

llvm-svn: 329729
This commit is contained in:
Sanjay Patel 2018-04-10 17:56:24 +00:00
parent c140bbddaf
commit e3a59e2e91
1 changed files with 8 additions and 8 deletions
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16
llvm/docs/CommandGuide/llvm-mca.rst
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@ -41,20 +41,20 @@ assembly text:
.. code-block:: c++
int foo(int a, int b) {
__asm volatile("# LLVM-MCA-BEGIN foo");
a += 42;
__asm volatile("# LLVM-MCA-END");
a *= b;
return a;
}
int foo(int a, int b) {
__asm volatile("# LLVM-MCA-BEGIN foo");
a += 42;
__asm volatile("# LLVM-MCA-END");
a *= b;
return a;
}
So for example, you can compile code with clang, output assembly, and pipe it
directly into llvm-mca for analysis:
.. code-block:: bash
$ clang foo.cpp -O2 -target x86_64-unknown-unknown -S -o - | llvm-mca -mcpu=btver2
$ clang foo.cpp -O2 -target x86_64-unknown-unknown -S -o - | llvm-mca -mcpu=btver2
Multiple regions can be specified provided that they do not overlap. A code
region can have an optional description. If no user defined region is specified,