diff lab4/test/memkill.p @ 0:bfdcc3820b32

Basis
author Mike Spivey <mike@cs.ox.ac.uk>
date Thu, 05 Oct 2017 08:04:15 +0100
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lab4/test/memkill.p	Thu Oct 05 08:04:15 2017 +0100
@@ -0,0 +1,64 @@
+(* All loads are killed by a procedure call *)
+
+proc f(): integer;
+  var x, y: integer;
+begin
+  x := 3;
+  y := x + 1;
+  g();
+  return x + 1
+end;
+
+proc g(); begin end;
+
+begin
+  print_num(f()); newline()
+end.
+
+(*<<
+4
+>>*)
+
+(*[[
+@ picoPascal compiler output
+	.include "fixup.s"
+	.global pmain
+
+@ proc f(): integer;
+	.text
+_f:
+	mov ip, sp
+	stmfd sp!, {r4-r10, fp, ip, lr}
+	mov fp, sp
+@   x := 3;
+	mov r4, #3
+@   y := x + 1;
+	add r5, r4, #1
+@   g();
+	bl _g
+@   return x + 1
+	add r0, r4, #1
+	ldmfd fp, {r4-r10, fp, sp, pc}
+	.ltorg
+
+@ proc g(); begin end;
+_g:
+	mov ip, sp
+	stmfd sp!, {r4-r10, fp, ip, lr}
+	mov fp, sp
+	ldmfd fp, {r4-r10, fp, sp, pc}
+	.ltorg
+
+pmain:
+	mov ip, sp
+	stmfd sp!, {r4-r10, fp, ip, lr}
+	mov fp, sp
+@   print_num(f()); newline()
+	bl _f
+	bl print_num
+	bl newline
+	ldmfd fp, {r4-r10, fp, sp, pc}
+	.ltorg
+
+@ End
+]]*)