forked from OSchip/llvm-project
237 lines
6.0 KiB
LLVM
237 lines
6.0 KiB
LLVM
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -tailcallopt | FileCheck %s -check-prefix CHECK-TAIL
|
|
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
|
|
; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu -tailcallopt -aarch64-redzone | FileCheck %s -check-prefix CHECK-TAIL-RZ
|
|
|
|
; Without tailcallopt fastcc still means the caller cleans up the
|
|
; stack, so try to make sure this is respected.
|
|
|
|
define fastcc void @func_stack0() {
|
|
; CHECK-LABEL: func_stack0:
|
|
; CHECK: mov x29, sp
|
|
; CHECK: str w{{[0-9]+}}, [sp, #-32]!
|
|
|
|
; CHECK-TAIL-LABEL: func_stack0:
|
|
; CHECK-TAIL: stp x29, x30, [sp, #-16]!
|
|
; CHECK-TAIL-NEXT: mov x29, sp
|
|
; CHECK-TAIL: str w{{[0-9]+}}, [sp, #-32]!
|
|
|
|
|
|
call fastcc void @func_stack8([8 x i32] undef, i32 42)
|
|
; CHECK: bl func_stack8
|
|
; CHECK-NOT: sub sp, sp,
|
|
|
|
; CHECK-TAIL: bl func_stack8
|
|
; CHECK-TAIL: sub sp, sp, #16
|
|
|
|
|
|
call fastcc void @func_stack32([8 x i32] undef, i128 0, i128 9)
|
|
; CHECK: bl func_stack32
|
|
; CHECK-NOT: sub sp, sp,
|
|
|
|
|
|
; CHECK-TAIL: bl func_stack32
|
|
; CHECK-TAIL: sub sp, sp, #32
|
|
|
|
|
|
call fastcc void @func_stack0()
|
|
; CHECK: bl func_stack0
|
|
; CHECK-NOT: sub sp, sp
|
|
|
|
|
|
; CHECK-TAIL: bl func_stack0
|
|
; CHECK-TAIL-NOT: sub sp, sp
|
|
|
|
ret void
|
|
; CHECK: mov sp, x29
|
|
; CHECK-NEXT: ldp x29, x30, [sp], #16
|
|
; CHECK-NEXT: ret
|
|
|
|
|
|
; CHECK-TAIL: mov sp, x29
|
|
; CHECK-TAIL-NEXT: ldp x29, x30, [sp], #16
|
|
; CHECK-TAIL-NEXT: ret
|
|
}
|
|
|
|
define fastcc void @func_stack8([8 x i32], i32 %stacked) {
|
|
; CHECK-LABEL: func_stack8:
|
|
; CHECK: stp x29, x30, [sp, #-16]!
|
|
; CHECK: mov x29, sp
|
|
; CHECK: str w{{[0-9]+}}, [sp, #-32]!
|
|
|
|
|
|
; CHECK-TAIL-LABEL: func_stack8:
|
|
; CHECK-TAIL: stp x29, x30, [sp, #-16]!
|
|
; CHECK-TAIL: mov x29, sp
|
|
; CHECK-TAIL: str w{{[0-9]+}}, [sp, #-32]!
|
|
|
|
|
|
call fastcc void @func_stack8([8 x i32] undef, i32 42)
|
|
; CHECK: bl func_stack8
|
|
; CHECK-NOT: sub sp, sp,
|
|
|
|
|
|
; CHECK-TAIL: bl func_stack8
|
|
; CHECK-TAIL: sub sp, sp, #16
|
|
|
|
|
|
call fastcc void @func_stack32([8 x i32] undef, i128 0, i128 9)
|
|
; CHECK: bl func_stack32
|
|
; CHECK-NOT: sub sp, sp,
|
|
|
|
|
|
; CHECK-TAIL: bl func_stack32
|
|
; CHECK-TAIL: sub sp, sp, #32
|
|
|
|
|
|
call fastcc void @func_stack0()
|
|
; CHECK: bl func_stack0
|
|
; CHECK-NOT: sub sp, sp
|
|
|
|
; CHECK-TAIL: bl func_stack0
|
|
; CHECK-TAIL-NOT: sub sp, sp
|
|
|
|
ret void
|
|
; CHECK: mov sp, x29
|
|
; CHECK-NEXT: ldp x29, x30, [sp], #16
|
|
; CHECK-NEXT: ret
|
|
|
|
|
|
; CHECK-TAIL: mov sp, x29
|
|
; CHECK-TAIL-NEXT: ldp x29, x30, [sp], #16
|
|
; CHECK-TAIL-NEXT: add sp, sp, #16
|
|
; CHECK-TAIL-NEXT: ret
|
|
}
|
|
|
|
define fastcc void @func_stack32([8 x i32], i128 %stacked0, i128 %stacked1) {
|
|
; CHECK-LABEL: func_stack32:
|
|
; CHECK: mov x29, sp
|
|
|
|
; CHECK-TAIL-LABEL: func_stack32:
|
|
; CHECK-TAIL: mov x29, sp
|
|
|
|
|
|
call fastcc void @func_stack8([8 x i32] undef, i32 42)
|
|
; CHECK: bl func_stack8
|
|
; CHECK-NOT: sub sp, sp,
|
|
|
|
; CHECK-TAIL: bl func_stack8
|
|
; CHECK-TAIL: sub sp, sp, #16
|
|
|
|
|
|
call fastcc void @func_stack32([8 x i32] undef, i128 0, i128 9)
|
|
; CHECK: bl func_stack32
|
|
; CHECK-NOT: sub sp, sp,
|
|
|
|
|
|
; CHECK-TAIL: bl func_stack32
|
|
; CHECK-TAIL: sub sp, sp, #32
|
|
|
|
|
|
call fastcc void @func_stack0()
|
|
; CHECK: bl func_stack0
|
|
; CHECK-NOT: sub sp, sp
|
|
|
|
|
|
; CHECK-TAIL: bl func_stack0
|
|
; CHECK-TAIL-NOT: sub sp, sp
|
|
|
|
ret void
|
|
; CHECK: mov sp, x29
|
|
; CHECK-NEXT: ldp x29, x30, [sp], #16
|
|
; CHECK-NEXT: ret
|
|
|
|
; CHECK-TAIL: mov sp, x29
|
|
; CHECK-TAIL-NEXT: ldp x29, x30, [sp], #16
|
|
; CHECK-TAIL-NEXT: add sp, sp, #32
|
|
; CHECK-TAIL-NEXT: ret
|
|
}
|
|
|
|
; Check that arg stack pop is done after callee-save restore when no frame pointer is used.
|
|
define fastcc void @func_stack32_leaf([8 x i32], i128 %stacked0, i128 %stacked1) {
|
|
; CHECK-LABEL: func_stack32_leaf:
|
|
; CHECK: str x20, [sp, #-16]!
|
|
; CHECK: nop
|
|
; CHECK-NEXT: //NO_APP
|
|
; CHECK-NEXT: ldr x20, [sp], #16
|
|
; CHECK-NEXT: ret
|
|
|
|
; CHECK-TAIL-LABEL: func_stack32_leaf:
|
|
; CHECK-TAIL: str x20, [sp, #-16]!
|
|
; CHECK-TAIL: nop
|
|
; CHECK-TAIL-NEXT: //NO_APP
|
|
; CHECK-TAIL-NEXT: ldr x20, [sp], #16
|
|
; CHECK-TAIL-NEXT: add sp, sp, #32
|
|
; CHECK-TAIL-NEXT: ret
|
|
|
|
; CHECK-TAIL-RZ-LABEL: func_stack32_leaf:
|
|
; CHECK-TAIL-RZ: str x20, [sp, #-16]!
|
|
; CHECK-TAIL-RZ-NOT: sub sp, sp
|
|
; CHECK-TAIL-RZ: nop
|
|
; CHECK-TAIL-RZ-NEXT: //NO_APP
|
|
; CHECK-TAIL-RZ-NEXT: ldr x20, [sp], #16
|
|
; CHECK-TAIL-RZ-NEXT: add sp, sp, #32
|
|
; CHECK-TAIL-RZ-NEXT: ret
|
|
|
|
; Make sure there is a callee-save register to save/restore.
|
|
call void asm sideeffect "nop", "~{x20}"() nounwind
|
|
ret void
|
|
}
|
|
|
|
; Check that arg stack pop is done after callee-save restore when no frame pointer is used.
|
|
define fastcc void @func_stack32_leaf_local([8 x i32], i128 %stacked0, i128 %stacked1) {
|
|
; CHECK-LABEL: func_stack32_leaf_local:
|
|
; CHECK: str x20, [sp, #-16]!
|
|
; CHECK-NEXT: sub sp, sp, #16
|
|
; CHECK: nop
|
|
; CHECK-NEXT: //NO_APP
|
|
; CHECK-NEXT: add sp, sp, #16
|
|
; CHECK-NEXT: ldr x20, [sp], #16
|
|
; CHECK-NEXT: ret
|
|
|
|
; CHECK-TAIL-LABEL: func_stack32_leaf_local:
|
|
; CHECK-TAIL: str x20, [sp, #-16]!
|
|
; CHECK-TAIL-NEXT: sub sp, sp, #16
|
|
; CHECK-TAIL: nop
|
|
; CHECK-TAIL-NEXT: //NO_APP
|
|
; CHECK-TAIL-NEXT: add sp, sp, #16
|
|
; CHECK-TAIL-NEXT: ldr x20, [sp], #16
|
|
; CHECK-TAIL-NEXT: add sp, sp, #32
|
|
; CHECK-TAIL-NEXT: ret
|
|
|
|
; CHECK-TAIL-RZ-LABEL: func_stack32_leaf_local:
|
|
; CHECK-TAIL-RZ: str x20, [sp, #-16]!
|
|
; CHECK-TAIL-RZ-NOT: sub sp, sp
|
|
; CHECK-TAIL-RZ: nop
|
|
; CHECK-TAIL-RZ-NEXT: //NO_APP
|
|
; CHECK-TAIL-RZ-NEXT: ldr x20, [sp], #16
|
|
; CHECK-TAIL-RZ-NEXT: add sp, sp, #32
|
|
; CHECK-TAIL-RZ-NEXT: ret
|
|
|
|
%val0 = alloca [2 x i64], align 8
|
|
|
|
; Make sure there is a callee-save register to save/restore.
|
|
call void asm sideeffect "nop", "~{x20}"() nounwind
|
|
ret void
|
|
}
|
|
|
|
; Check that arg stack pop is done after callee-save restore when no frame pointer is used.
|
|
define fastcc void @func_stack32_leaf_local_nocs([8 x i32], i128 %stacked0, i128 %stacked1) {
|
|
; CHECK-LABEL: func_stack32_leaf_local_nocs:
|
|
; CHECK: sub sp, sp, #16
|
|
; CHECK: add sp, sp, #16
|
|
; CHECK-NEXT: ret
|
|
|
|
; CHECK-TAIL-LABEL: func_stack32_leaf_local_nocs:
|
|
; CHECK-TAIL: sub sp, sp, #16
|
|
; CHECK-TAIL: add sp, sp, #48
|
|
; CHECK-TAIL-NEXT: ret
|
|
|
|
; CHECK-TAIL-RZ-LABEL: func_stack32_leaf_local_nocs:
|
|
; CHECK-TAIL-RZ: add sp, sp, #32
|
|
; CHECK-TAIL-RZ-NEXT: ret
|
|
|
|
%val0 = alloca [2 x i64], align 8
|
|
|
|
ret void
|
|
}
|