amd64/isel: indirect call arg must be memaddr

1 files changed, 7 insertions, 2 deletions

diff --git a/amd64/isel.c b/amd64/isel.c
index 26ee6e0..9606c87 100644
--- a/amd64/isel.c
+++ b/amd64/isel.c
@@ -115,6 +115,8 @@ fixarg(union ref *r, struct instr *ins, struct block *blk, int *curi)
    picfixsym(r, blk, curi);
 }
 
+#define isimm32(r) (iscon(r) && concls(r) == KI32)
+
 static void
 selcall(struct function *fn, struct instr *ins, struct block *blk, int *curi)
 {
@@ -147,6 +149,11 @@ selcall(struct function *fn, struct instr *ins, struct block *blk, int *curi)
       ++*curi;
       insertinstr(blk, *curi+1, (struct instr){Oadd, KPTR, .keep=1, .reg = RSP+1, .l=mkref(RREG,RSP), disp});
    }
+   if (isimm32(ins->l))
+      ins->l = mkaddr((struct addr){.base = ins->l});
+   else if (isintcon(ins->l))
+      ins->l = insertinstr(blk, (*curi)++, mkinstr(Ocopy, KPTR, ins->l));
+
    if (call->vararg >= 0 && ins->l.t == RTMP) {
       /* variadic calls write number of sse regs used to AL, so mark it as clobbered such that
        * the function pointer of an indirect calls does not get allocated to RAX by regalloc */
@@ -166,8 +173,6 @@ selcall(struct function *fn, struct instr *ins, struct block *blk, int *curi)
    }
 }
 
-#define isimm32(r) (iscon(r) && concls(r) == KI32)
-
 static bool
 aimm(struct addr *addr, int disp)
 {