s390x: Implement bitrev (#4617)

Since we do not have an instruction for this, this is a simple open-coded implementation. Needed by the cg_clif frontend.
2022-08-05 01:24:55 +02:00
parent 42233e8eda
commit f552a53654
5 changed files with 193 additions and 33 deletions
--- a/cranelift/filetests/filetests/runtests/bitrev.clif
+++ b/cranelift/filetests/filetests/runtests/bitrev.clif
@@ -1,6 +1,7 @@
 test interpret
 test run
 target aarch64
+target s390x
 target x86_64

 function %bitrev_i8(i8) -> i8 {