3 Commits

Author SHA1 Message Date
Haicheng Wu
33a530fbed [LIR] Add support for structs and hand unrolled loops
This is a recommit of r258620 which causes PR26293.

The original message:

Now LIR can turn following codes into memset:

typedef struct foo {
  int a;
  int b;
} foo_t;

void bar(foo_t *f, unsigned n) {
  for (unsigned i = 0; i < n; ++i) {
    f[i].a = 0;
    f[i].b = 0;
  }
}

void test(foo_t *f, unsigned n) {
  for (unsigned i = 0; i < n; i += 2) {
    f[i] = 0;
    f[i+1] = 0;
  }
}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258777 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-26 02:27:47 +00:00
Quentin Colombet
79b3dc3c04 Speculatively revert r258620 as it is the likely culprid of PR26293.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258703 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-25 19:12:49 +00:00
Haicheng Wu
98b6bad4c8 [LIR] Add support for structs and hand unrolled loops
Now LIR can turn following codes into memset:

typedef struct foo {
  int a;
  int b;
} foo_t;

void bar(foo_t *f, unsigned n) {
  for (unsigned i = 0; i < n; ++i) {
    f[i].a = 0;
    f[i].b = 0;
  }
}

void test(foo_t *f, unsigned n) {
  for (unsigned i = 0; i < n; i += 2) {
    f[i] = 0;
    f[i+1] = 0;
  }
}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258620 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-23 06:52:41 +00:00