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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AArch64/sve-callbyref-notailcall.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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>)