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* [LIR] Add support for structs and hand unrolled loopsHaicheng Wu2016-01-261-0/+221
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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; } } llvm-svn: 258777
* Speculatively revert r258620 as it is the likely culprid of PR26293.Quentin Colombet2016-01-251-221/+0
| | | | llvm-svn: 258703
* [LIR] Add support for structs and hand unrolled loopsHaicheng Wu2016-01-231-0/+221
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; } } llvm-svn: 258620
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