1 ; RUN: llc < %s | FileCheck %s 2 target triple = "arm64-apple-macosx10" 3 4 ; Check that big stacks are generated correctly. 5 ; Currently, this is done by a sequence of sub instructions, 6 ; which can encode immediate with a 12 bits mask an optionally 7 ; shift left (up to 12). I.e., 16773120 is the biggest value. 8 ; <rdar://12513931> 9 ; CHECK-LABEL: foo: 10 ; CHECK: sub sp, sp, #4095, lsl #12 11 ; CHECK: sub sp, sp, #4095, lsl #12 12 ; CHECK: sub sp, sp, #2, lsl #12 13 define void @foo() nounwind ssp { 14 entry: 15 %buffer = alloca [33554432 x i8], align 1 16 %arraydecay = getelementptr inbounds [33554432 x i8], [33554432 x i8]* %buffer, i64 0, i64 0 17 call void @doit(i8* %arraydecay) nounwind 18 ret void 19 } 20 21 declare void @doit(i8*) 22
