Legalize bnot using xor with -1.

2018-05-05 11:01:49 -05:00
parent bb612af37a
commit 5b69930e03
2 changed files with 10 additions and 1 deletions
--- a/cranelift/filetests/isa/riscv/expand-i32.cton
+++ b/cranelift/filetests/isa/riscv/expand-i32.cton
@@ -32,7 +32,8 @@ ebb0(v0: i32):
 function %bitclear(i32, i32) -> i32 {
 ebb0(v0: i32, v1: i32):
    v2 = band_not v0, v1
-    ; check: bnot
+    ; check: iconst.i32 -1
+    ; check: bxor
    ; check: band
    return v2
 }