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

Remove uses of reg_mod from s390x (#5073)

Browse Source 
Remove uses of reg_mod from the s390x backend. This required moving away from using r0/r1 as the result registers from a few different pseudo instructions, standardizing instead on r2/r3. That change was necessary as regalloc2 will not correctly allocate registers that aren't listed in the allocatable set, which r0/r1 are not.

Co-authored-by: Ulrich Weigand <ulrich.weigand@de.ibm.com>
Co-authored-by: Chris Fallin <chris@cfallin.org>
This commit is contained in:
Trevor Elliott
2022-10-21 09:22:16 -07:00
committed by GitHub
parent 204d4c332c
commit d9753fac2b
19 changed files with 1215 additions and 758 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
cranelift/filetests/filetests/isa/s390x/tls_elf.clif
View File

@@ -18,9 +18,9 @@ block0(v0: i32):
; bras %r1, 12 ; data userextname0@tlsgd ; lg %r2, 0(%r1)
; brasl %r14, %ElfTlsGetOffset:tls_gdcall:userextname0
; ear %r3, %a0
; sllg %r4, %r3, 32
; ear %r4, %a1
; agr %r2, %r4
; sllg %r5, %r3, 32
; ear %r5, %a1
; agr %r2, %r5
; lmg %r12, %r15, 256(%r15)
; br %r14