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

Merge pull request #2393 from jgouly/constant-addend

Browse Source 
arm64: Fold some constants into load instructions
This commit is contained in:
Chris Fallin
2020-11-11 11:23:21 -08:00
committed by GitHub
parent aa259ff92a a5011e8212
commit 997b654235
2 changed files with 49 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
cranelift/filetests/filetests/isa/aarch64/amodes.clif
View File

@@ -269,3 +269,33 @@ block0(v0: i32, v1: i32):
; nextln: mov sp, fp
; nextln: ldp fp, lr, [sp], #16
; nextln: ret
function %f16(i64) -> i32 {
block0(v0: i64):
v1 = iconst.i32 0
v2 = uextend.i64 v1
v3 = load_complex.i32 v0+v2
return v3
}
; check: stp fp, lr, [sp, #-16]!
; nextln: mov fp, sp
; nextln: ldr w0, [x0]
; nextln: mov sp, fp
; nextln: ldp fp, lr, [sp], #16
; nextln: ret
function %f17(i64) -> i32 {
block0(v0: i64):
v1 = iconst.i32 4
v2 = uextend.i64 v1
v3 = load_complex.i32 v0+v2
return v3
}
; check: stp fp, lr, [sp, #-16]!
; nextln: mov fp, sp
; nextln: ldur w0, [x0, #4]
; nextln: mov sp, fp
; nextln: ldp fp, lr, [sp], #16
; nextln: ret