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llvm-mirror/test/CodeGen/AArch64/machine-outliner.ll
David Green d0933009b5 [Outliner] Set nounwind for outlined functions
This prevents the outlined functions from pulling in a lot of unnecessary code
in our downstream libraries/linker. Which stops outlining making codesize
worse in c++ code with no-exceptions.

Differential Revision: https://reviews.llvm.org/D57254
2020-07-01 17:18:34 +01:00

108 lines
3.4 KiB
LLVM

; RUN: llc -verify-machineinstrs -enable-machine-outliner -aarch64-load-store-renaming=true -mtriple=aarch64-apple-darwin < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -enable-machine-outliner -aarch64-load-store-renaming=true -mtriple=aarch64-apple-darwin -mcpu=cortex-a53 -enable-misched=false < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -enable-machine-outliner -enable-linkonceodr-outlining -mtriple=aarch64-apple-darwin < %s | FileCheck %s -check-prefix=ODR
; RUN: llc -verify-machineinstrs -enable-machine-outliner -mtriple=aarch64-apple-darwin -stop-after=machine-outliner < %s | FileCheck %s -check-prefix=TARGET_FEATURES
; Make sure that we inherit target features from functions and make sure we have
; the right function attributes.
; TARGET_FEATURES: define internal void @OUTLINED_FUNCTION_{{[0-9]+}}()
; TARGET_FEATURES-SAME: #[[ATTR_NUM:[0-9]+]]
; TARGET_FEATURES-DAG: attributes #[[ATTR_NUM]] = {
; TARGET_FEATURES-SAME: minsize
; TARGET_FEATURES-SAME: nounwind
; TARGET_FEATURES-SAME: optsize
; TARGET_FEATURES-SAME: "target-features"="+sse"
define linkonce_odr void @fish() #0 {
; CHECK-LABEL: _fish:
; CHECK-NOT: OUTLINED
; ODR: [[OUTLINED:OUTLINED_FUNCTION_[0-9]+]]
%1 = alloca i32, align 4
%2 = alloca i32, align 4
%3 = alloca i32, align 4
%4 = alloca i32, align 4
%5 = alloca i32, align 4
%6 = alloca i32, align 4
store i32 1, i32* %1, align 4
store i32 2, i32* %2, align 4
store i32 3, i32* %3, align 4
store i32 4, i32* %4, align 4
store i32 5, i32* %5, align 4
store i32 6, i32* %6, align 4
ret void
}
define void @turtle() section "TURTLE,turtle" {
; CHECK-LABEL: _turtle:
; ODR-LABEL: _turtle:
; CHECK-NOT: OUTLINED
%1 = alloca i32, align 4
%2 = alloca i32, align 4
%3 = alloca i32, align 4
%4 = alloca i32, align 4
%5 = alloca i32, align 4
%6 = alloca i32, align 4
store i32 1, i32* %1, align 4
store i32 2, i32* %2, align 4
store i32 3, i32* %3, align 4
store i32 4, i32* %4, align 4
store i32 5, i32* %5, align 4
store i32 6, i32* %6, align 4
ret void
}
define void @cat() #0 {
; CHECK-LABEL: _cat:
; CHECK: [[OUTLINED:OUTLINED_FUNCTION_[0-9]+]]
; ODR: [[OUTLINED]]
%1 = alloca i32, align 4
%2 = alloca i32, align 4
%3 = alloca i32, align 4
%4 = alloca i32, align 4
%5 = alloca i32, align 4
%6 = alloca i32, align 4
store i32 1, i32* %1, align 4
store i32 2, i32* %2, align 4
store i32 3, i32* %3, align 4
store i32 4, i32* %4, align 4
store i32 5, i32* %5, align 4
store i32 6, i32* %6, align 4
ret void
}
define void @dog() #0 {
; CHECK-LABEL: _dog:
; CHECK: [[OUTLINED]]
; ODR: [[OUTLINED]]
%1 = alloca i32, align 4
%2 = alloca i32, align 4
%3 = alloca i32, align 4
%4 = alloca i32, align 4
%5 = alloca i32, align 4
%6 = alloca i32, align 4
store i32 1, i32* %1, align 4
store i32 2, i32* %2, align 4
store i32 3, i32* %3, align 4
store i32 4, i32* %4, align 4
store i32 5, i32* %5, align 4
store i32 6, i32* %6, align 4
ret void
}
; ODR: [[OUTLINED]]:
; CHECK: .p2align 2
; CHECK-NEXT: [[OUTLINED]]:
; CHECK: mov w9, #1
; CHECK-DAG: mov w8, #2
; CHECK-DAG: stp w8, w9, [sp, #24]
; CHECK-DAG: mov w9, #3
; CHECK-DAG: mov w8, #4
; CHECK-DAG: stp w8, w9, [sp, #16]
; CHECK-DAG: mov w9, #5
; CHECK-DAG: mov w8, #6
; CHECK-DAG: stp w8, w9, [sp, #8]
; CHECK-DAG: add sp, sp, #32
; CHECK-DAG: ret
attributes #0 = { nounwind noredzone "target-cpu"="cyclone" "target-features"="+sse" }