diff lab4/test/cse.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/cse.p	Thu Oct 05 08:04:15 2017 +0100
@@ -0,0 +1,51 @@
+(* Basic test of CSE *)
+
+proc p(x, y: integer);
+begin
+  print_num((x-y)*(x-y)+x); newline()
+end;
+
+begin
+  p(9, 5)
+end.
+
+(*<<
+25
+>>*)
+
+(*[[
+@ picoPascal compiler output
+	.include "fixup.s"
+	.global pmain
+
+@ proc p(x, y: integer);
+	.text
+_p:
+	mov ip, sp
+	stmfd sp!, {r0-r1}
+	stmfd sp!, {r4-r10, fp, ip, lr}
+	mov fp, sp
+@   print_num((x-y)*(x-y)+x); newline()
+	ldr r4, [fp, #40]
+	ldr r0, [fp, #44]
+	sub r5, r4, r0
+	mul r0, r5, r5
+	add r0, r0, r4
+	bl print_num
+	bl newline
+	ldmfd fp, {r4-r10, fp, sp, pc}
+	.ltorg
+
+pmain:
+	mov ip, sp
+	stmfd sp!, {r4-r10, fp, ip, lr}
+	mov fp, sp
+@   p(9, 5)
+	mov r1, #5
+	mov r0, #9
+	bl _p
+	ldmfd fp, {r4-r10, fp, sp, pc}
+	.ltorg
+
+@ End
+]]*)