T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

peepmatic: Make peepmatic optional to enable

Browse Source 
Rather than outright replacing parts of our existing peephole optimizations
passes, this makes peepmatic an optional cargo feature that can be enabled. This
allows us to take a conservative approach with enabling peepmatic everywhere,
while also allowing us to get it in-tree and make it easier to collaborate on
improving it quickly.
This commit is contained in:
Nick Fitzgerald
2020-05-08 12:15:23 -07:00
parent 6e135b3aea
commit 52c6ece5f3
25 changed files with 2284 additions and 100 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
cranelift/filetests/filetests/peepmatic/fold-extended-move-wraparound.clif Normal file
View File

@@ -0,0 +1,14 @@
test peepmatic
target x86_64
function %wraparound(i64 vmctx) -> f32 system_v {
gv0 = vmctx
gv1 = iadd_imm.i64 gv0, 48
block35(v0: i64):
v88 = iconst.i64 0
v89 = iconst.i64 0x8000_0000_0000_0000
v90 = ishl_imm v88, 0x8000_0000_0000_0000
v91 = sshr v90, v89; check: sshr_imm v90, 0x8000_0000_0000_0000
trap user0
}