| commit | 8626b741716390a0119ffeb88b5b9fcf08e13010 | [log] [tgz] |
|---|---|---|
| author | Alexandre Rames <alexandre.rames@linaro.org> | Wed Nov 25 16:28:08 2015 +0000 |
| committer | Alexandre Rames <alexandre.rames@linaro.org> | Wed Nov 25 16:28:08 2015 +0000 |
| tree | 28d261dbb8fa3018cba8a5d829319604508ea0a1 | |
| parent | 0c32fdeaeda2a1e388e280da12662d1d18c834a2 [diff] |
ARM64: Use the shifter operands.
This introduces architecture-specific instruction simplification.
On ARM64 we try to merge shifts and sign-extension operations into
arithmetic and logical instructions.
For example for the Java code
int res = a + (b << 5);
we would generate
lsl w3, w2, #5
add w0, w1, w3
and we now generate
add w0, w1, w2, lsl #5
Change-Id: Ic03bdff44a1c12e21ddff1b0513bd32a730742b7