forked from OSchip/llvm-project
30 lines
1.5 KiB
LLVM
30 lines
1.5 KiB
LLVM
; Because some arguments are passed by reference (through stack),
|
|
; the compiler should not do tail-call optimization.
|
|
; RUN: llc -mtriple=aarch64 -mattr=+sve < %s | FileCheck %s
|
|
|
|
; CHECK-LABEL: caller:
|
|
; CHECK: addvl sp, sp, #-[[STACKSIZE:[0-9]+]]
|
|
; CHECK-NOT: addvl sp
|
|
; CHECK: bl callee
|
|
; CHECK: addvl sp, sp, #[[STACKSIZE]]
|
|
; CHECK: ret
|
|
define <vscale x 16 x i8> @caller(<vscale x 16 x i8> %v) {
|
|
%1 = tail call <vscale x 16 x i8> @callee(<vscale x 16 x i8> %v, <vscale x 16 x i8> %v, <vscale x 16 x i8> %v, <vscale x 16 x i8> %v, <vscale x 16 x i8> %v, <vscale x 16 x i8> %v, <vscale x 16 x i8> %v, <vscale x 16 x i8> %v, <vscale x 16 x i8> %v)
|
|
ret <vscale x 16 x i8> %1
|
|
}
|
|
|
|
declare <vscale x 16 x i8> @callee(<vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>, <vscale x 16 x i8>)
|
|
|
|
; CHECK-LABEL: caller_pred:
|
|
; CHECK: addvl sp, sp, #-[[STACKSIZE:[0-9]+]]
|
|
; CHECK-NOT: addvl sp
|
|
; CHECK: bl callee_pred
|
|
; CHECK: addvl sp, sp, #[[STACKSIZE]]
|
|
; CHECK: ret
|
|
define <vscale x 16 x i1> @caller_pred(<vscale x 16 x i1> %v) {
|
|
%1 = tail call <vscale x 16 x i1> @callee_pred(<vscale x 16 x i1> %v, <vscale x 16 x i1> %v, <vscale x 16 x i1> %v, <vscale x 16 x i1> %v, <vscale x 16 x i1> %v)
|
|
ret <vscale x 16 x i1> %1
|
|
}
|
|
|
|
declare <vscale x 16 x i1> @callee_pred(<vscale x 16 x i1>, <vscale x 16 x i1>, <vscale x 16 x i1>, <vscale x 16 x i1>, <vscale x 16 x i1>)
|