32 lines
932 B
LLVM
32 lines
932 B
LLVM
; RUN: llc < %s -mtriple=arm64-eabi -aarch64-redzone | FileCheck %s
|
|
|
|
define i32 @foo(i32 %a, i32 %b) nounwind ssp {
|
|
; CHECK-LABEL: foo:
|
|
; CHECK-NOT: sub sp, sp
|
|
; CHECK: ret
|
|
%a.addr = alloca i32, align 4
|
|
%b.addr = alloca i32, align 4
|
|
%x = alloca i32, align 4
|
|
store i32 %a, ptr %a.addr, align 4
|
|
store i32 %b, ptr %b.addr, align 4
|
|
%tmp = load i32, ptr %a.addr, align 4
|
|
%tmp1 = load i32, ptr %b.addr, align 4
|
|
%add = add nsw i32 %tmp, %tmp1
|
|
store i32 %add, ptr %x, align 4
|
|
%tmp2 = load i32, ptr %x, align 4
|
|
ret i32 %tmp2
|
|
}
|
|
|
|
; We disable red-zone if NEON is available because copies of Q-regs
|
|
; require a spill/fill and dynamic allocation. But we only need to do
|
|
; this when FP registers are enabled.
|
|
define void @bar(fp128 %f) "target-features"="-fp-armv8" {
|
|
; CHECK-LABEL: bar:
|
|
; CHECK: // %bb.0:
|
|
; CHECK-NEXT: stp x0, x1, [sp, #-16]
|
|
; CHECK-NEXT: ret
|
|
%ptr = alloca fp128
|
|
store fp128 %f, ptr %ptr
|
|
ret void
|
|
}
|