Update test pic.swift for different code gen (#19595)

rdar://44843229

Author: aschwaighofer

test/IRGen/pic.swift

@@ -44,11 +44,10 @@ public func use_global() -> Int {
 // armv7k:        ldr [[R_ADR]], {{\[}}[[R_ADR]]{{\]}}
 
 // arm64-LABEL: {{_?}}$s4main10use_globalSiyF:
-// arm64:         adrp [[REG1:x[0-9]+]], _$s4main6globalSivp@PAGE
-// arm64:         add [[REG1]], [[REG1]], _$s4main6globalSivp@PAGEOFF
-// This is a spill around beginAccess that is not strictly necessary.
-// arm64:         str [[REG1]], {{\[}}sp, #16{{\]}}
-// arm64-NEXT:    str
-// arm64-NEXT:    bl _swift_beginAccess
-// arm64-NEXT:    ldr [[REG2:x[0-9]+]], {{\[}}sp, #16{{\]}}
-// arm64-NEXT:    ldr {{x[0-9]+}}, {{\[}}[[REG2]]{{\]}}
+// arm64:        bl _swift_beginAccess
+// arm64:        adrp [[REG1:x[0-9]+]], _$s4main6globalSivp@PAGE
+// arm64:        add [[REG1]], [[REG1]], _$s4main6globalSivp@PAGEOFF
+// arm64:        ldr [[REG2:x[0-9]+]], {{\[}}[[REG1]]{{\]}}
+// arm64:        str [[REG2]], [sp]
+// arm64:        bl _swift_endAccess
+// arm64:        ldr x0, [sp]