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llvm-mirror/test/CodeGen/AArch64/machine-outliner.ll
Jessica Paquette c877e03376 [MachineOutliner][AArch64] Improve checks for stack instructions
If we know that we'll definitely save LR to a register, there's no reason to
pre-check whether or not a stack instruction is unsafe to fix up.

This makes it so that we check for that condition before mapping instructions.

This allows us to outline more, since we don't pessimise as many instructions.

Also update some tests, since we outline more.

llvm-svn: 348081
2018-12-01 21:24:06 +00:00

110 lines
3.5 KiB
LLVM

; RUN: llc -verify-machineinstrs -enable-machine-outliner -mtriple=aarch64-apple-darwin < %s | FileCheck %s
; RUN: llc -verify-machineinstrs -enable-machine-outliner -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: 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: orr w8, wzr, #0x1
; CHECK-NEXT: str w8, [sp, #28]
; CHECK-NEXT: orr w8, wzr, #0x2
; CHECK-NEXT: str w8, [sp, #24]
; CHECK-NEXT: orr w8, wzr, #0x3
; CHECK-NEXT: str w8, [sp, #20]
; CHECK-NEXT: orr w8, wzr, #0x4
; CHECK-NEXT: str w8, [sp, #16]
; CHECK-NEXT: mov w8, #5
; CHECK-NEXT: str w8, [sp, #12]
; CHECK-NEXT: orr w8, wzr, #0x6
; CHECK-NEXT: str w8, [sp, #8]
; CHECK-NEXT: add sp, sp, #32
; CHECK-NEXT: ret
attributes #0 = { noredzone "target-cpu"="cyclone" "target-features"="+sse" }