69cd776e1e
[CodeGen] Apply 'nonnull' and 'dereferenceable(N)' to 'this' pointer
...
arguments.
* Adds 'nonnull' and 'dereferenceable(N)' to 'this' pointer arguments
* Gates 'nonnull' on -f(no-)delete-null-pointer-checks
* Introduces this-nonnull.cpp and microsoft-abi-this-nullable.cpp tests to
explicitly test the behavior of this change
* Refactors hundreds of over-constrained clang tests to permit these
attributes, where needed
* Updates Clang12 patch notes mentioning this change
Reviewed-by: rsmith, jdoerfert
Differential Revision: https://reviews.llvm.org/D17993
2020-11-16 17:39:17 -08:00
43101d10db
[OPENMP50]Codegen for scan directive in simd loops.
...
Added codegen for scan directives in simd loop. The codegen transforms
original code:
```
int x = 0;
#pragma omp simd reduction(inscan, +: x)
for (..) {
<first part>
#pragma omp scan inclusive(x)
<second part>
}
```
into
```
int x = 0;
for (..) {
int x_priv = 0;
<first part>
x = x_priv + x;
x_priv = x;
<second part>
}
```
and
```
int x = 0;
#pragma omp simd reduction(inscan, +: x)
for (..) {
<first part>
#pragma omp scan exclusive(x)
<second part>
}
```
into
```
int x = 0;
for (..) {
int x_priv = 0;
<second part>
int temp = x;
x = x_priv + x;
x_priv = temp;
<first part>
}
```
Differential revision: https://reviews.llvm.org/D78232
2020-06-11 14:48:43 -04:00
fac7259c81
Revert "[OPENMP50]Codegen for scan directive in simd loops."
...
This reverts commit fb80e67f10
2020-06-11 11:22:51 -04:00
fb80e67f10
[OPENMP50]Codegen for scan directive in simd loops.
...
Added codegen for scandirectives in simd loop. The codegen transforms
original code:
```
int x = 0;
#pragma omp simd reduction(inscan, +: x)
for (..) {
<first part>
#pragma omp scan inclusive(x)
<second part>
}
```
into
```
int x = 0;
for (..) {
int x_priv = 0;
<first part>
x = x_priv + x;
x_priv = x;
<second part>
}
```
and
```
int x = 0;
#pragma omp simd reduction(inscan, +: x)
for (..) {
<first part>
#pragma omp scan exclusive(x)
<second part>
}
```
into
```
int x = 0;
for (..) {
int x_priv = 0;
<second part>
int temp = x;
x = x_priv + x;
x_priv = temp;
<first part>
}
```
Differential revision: https://reviews.llvm.org/D78232
2020-06-11 09:01:23 -04:00
CJ Johnson