thumb2-execute-only-prologue.ll
1.12 KB
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; RUN: llc < %s -mtriple=thumbv8m.base-arm-none-eabi | FileCheck %s
define void @fn() {
entry:
; CHECK-LABEL: fn:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r4, r5, r6, lr}
; CHECK-NEXT: push {r4, r5, r6, lr}
; CHECK-NEXT: ldr r6, .LCPI0_0
; CHECK-NEXT: .pad #1600
; CHECK-NEXT: add sp, r6
; CHECK: .LCPI0_0:
; CHECK_NEXT: long 4294963196
%a = alloca [400 x i32], align 4
%arraydecay = getelementptr inbounds [400 x i32], [400 x i32]* %a, i32 0, i32 0
call void @bar(i32* %arraydecay)
ret void
}
define void @execute_only_fn() #0 {
entry:
; CHECK-LABEL: execute_only_fn:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: .save {r4, r5, r6, lr}
; CHECK-NEXT: push {r4, r5, r6, lr}
; CHECK-NEXT: movw r6, #63936
; CHECK-NEXT: movt r6, #65535
; CHECK-NEXT: .pad #1600
; CHECK-NEXT: add sp, r6
%a = alloca [400 x i32], align 4
%arraydecay = getelementptr inbounds [400 x i32], [400 x i32]* %a, i32 0, i32 0
call void @bar(i32* %arraydecay)
ret void
}
declare dso_local void @bar(i32*)
attributes #0 = { noinline optnone "target-features"="+armv8-m.base,+execute-only,+thumb-mode" }