llvm-project

Commit Graph

Author	SHA1	Message	Date
Chad Rosier	84567343bc	Remove extra whitespace. NFC. llvm-svn: 268248	2016-05-02 16:45:00 +00:00
Haicheng Wu	d60ae33d29	[CVP] Convert an SDiv to a UDiv if both operands are known to be nonnegative The motivating example is this for (j = n; j > 1; j = i) { i = j / 2; } The signed division is safely to be changed to an unsigned division (j is known to be larger than 1 from the loop guard) and later turned into a single shift without considering the sign bit. llvm-svn: 263406	2016-03-14 03:24:28 +00:00

Author

SHA1

Message

Date

Chad Rosier

84567343bc

Remove extra whitespace. NFC.

llvm-svn: 268248

2016-05-02 16:45:00 +00:00

Haicheng Wu

d60ae33d29

[CVP] Convert an SDiv to a UDiv if both operands are known to be nonnegative

The motivating example is this

for (j = n; j > 1; j = i) {
   i = j / 2;
}

The signed division is safely to be changed to an unsigned division (j is known
to be larger than 1 from the loop guard) and later turned into a single shift
without considering the sign bit.

llvm-svn: 263406

2016-03-14 03:24:28 +00:00

2 Commits