Switch to x64_rbp to avoid the use of a pinned register (bytecodeal…

…liance#5168) Avoid a use of preg_rpb in the x64 backend, using x64_rbp instead.
uweigand · Nov 1, 2022 · 09d8df6 · 09d8df6
1 parent 0ca3249
commit 09d8df6
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Showing 2 changed files with 4 additions and 2 deletions.
diff --git a/cranelift/codegen/src/isa/x64/lower.isle b/cranelift/codegen/src/isa/x64/lower.isle
@@ -2853,7 +2853,7 @@
 
 (rule (lower (get_return_address))
       (x64_load $I64
-                (Amode.ImmReg 8 (preg_rbp) (mem_flags_trusted))
+                (Amode.ImmReg 8 (x64_rbp) (mem_flags_trusted))
                 (ExtKind.None)))
 
 ;; Rules for `jump` ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

diff --git a/cranelift/filetests/filetests/isa/x64/fp_sp_pc.clif b/cranelift/filetests/filetests/isa/x64/fp_sp_pc.clif
@@ -39,7 +39,9 @@ block0:
 ;   pushq   %rbp
 ;   movq    %rsp, %rbp
 ; block0:
-;   movq    8(%rbp), %rax
+;   movq    %rbp, %rdi
+;   movq    8(%rdi), %rax
 ;   movq    %rbp, %rsp
 ;   popq    %rbp
 ;   ret
+