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29f94c7201
This commit starts with a "git mv ARM64 AArch64" and continues out from there, renaming the C++ classes, intrinsics, and other target-local objects for consistency. "ARM64" test directories are also moved, and tests that began their life in ARM64 use an arm64 triple, those from AArch64 use an aarch64 triple. Both should be equivalent though. This finishes the AArch64 merge, and everyone should feel free to continue committing as normal now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209577 91177308-0d34-0410-b5e6-96231b3b80d8
159 lines
4.2 KiB
LLVM
159 lines
4.2 KiB
LLVM
; RUN: llc -mtriple=aarch64-linux-gnu -verify-machineinstrs -o - %s | FileCheck %s --check-prefix=CHECK
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; RUN: llc -mtriple=aarch64-none-linux-gnu -mattr=-fp-armv8 -verify-machineinstrs < %s | FileCheck --check-prefix=CHECK-NOFP-ARM64 %s
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declare void @use_addr(i8*)
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define void @test_simple_alloca(i64 %n) {
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; CHECK-LABEL: test_simple_alloca:
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%buf = alloca i8, i64 %n
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; Make sure we align the stack change to 16 bytes:
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; CHECK: {{mov|add}} x29
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; CHECK: mov [[TMP:x[0-9]+]], sp
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; CHECK: add [[SPDELTA_TMP:x[0-9]+]], x0, #15
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; CHECK: and [[SPDELTA:x[0-9]+]], [[SPDELTA_TMP]], #0xfffffffffffffff0
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; Make sure we change SP. It would be surprising if anything but x0 were used
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; for the final sp, but it could be if it was then moved into x0.
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; CHECK: sub [[NEWSP:x[0-9]+]], [[TMP]], [[SPDELTA]]
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; CHECK: mov sp, [[NEWSP]]
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call void @use_addr(i8* %buf)
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; CHECK: bl use_addr
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ret void
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; Make sure epilogue restores sp from fp
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; CHECK: {{sub|mov}} sp, x29
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; CHECK: ret
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}
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declare void @use_addr_loc(i8*, i64*)
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define i64 @test_alloca_with_local(i64 %n) {
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; CHECK-LABEL: test_alloca_with_local:
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; CHECK-DAG: sub sp, sp, [[LOCAL_STACK:#[0-9]+]]
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; CHECK-DAG: {{mov|add}} x29, sp
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%loc = alloca i64
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%buf = alloca i8, i64 %n
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; Make sure we align the stack change to 16 bytes:
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; CHECK: mov [[TMP:x[0-9]+]], sp
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; CHECK: add [[SPDELTA_TMP:x[0-9]+]], x0, #15
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; CHECK: and [[SPDELTA:x[0-9]+]], [[SPDELTA_TMP]], #0xfffffffffffffff0
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; Make sure we change SP. It would be surprising if anything but x0 were used
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; for the final sp, but it could be if it was then moved into x0.
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; CHECK: sub [[NEWSP:x[0-9]+]], [[TMP]], [[SPDELTA]]
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; CHECK: mov sp, [[NEWSP]]
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; CHECK: sub {{x[0-9]+}}, x29, #[[LOC_FROM_FP:[0-9]+]]
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call void @use_addr_loc(i8* %buf, i64* %loc)
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; CHECK: bl use_addr
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%val = load i64* %loc
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; CHECK: ldur x0, [x29, #-[[LOC_FROM_FP]]]
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ret i64 %val
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; Make sure epilogue restores sp from fp
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; CHECK: {{sub|mov}} sp, x29
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; CHECK: ret
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}
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define void @test_variadic_alloca(i64 %n, ...) {
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; CHECK-LABEL: test_variadic_alloca:
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; [...]
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; CHECK-NOFP-AARCH64: sub sp, sp, #80
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; CHECK-NOFP-AARCH64: stp x29, x30, [sp, #64]
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; CHECK-NOFP-AARCH64: add x29, sp, #64
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; CHECK-NOFP-AARCH64: sub [[TMP:x[0-9]+]], x29, #64
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; CHECK-NOFP-AARCH64: add x8, [[TMP]], #0
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; CHECK: stp x29, x30, [sp, #-16]!
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; CHECK: mov x29, sp
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; CHECK: sub sp, sp, #192
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; CHECK: stp q6, q7, [x29, #-96]
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; [...]
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; CHECK: stp q0, q1, [x29, #-192]
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; CHECK: stp x6, x7, [x29, #-16]
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; [...]
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; CHECK: stp x2, x3, [x29, #-48]
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; CHECK-NOFP-ARM64: stp x29, x30, [sp, #-16]!
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; CHECK-NOFP-ARM64: mov x29, sp
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; CHECK-NOFP-ARM64: sub sp, sp, #64
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; CHECK-NOFP-ARM64: stp x6, x7, [x29, #-16]
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; [...]
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; CHECK-NOFP-ARM64: stp x4, x5, [x29, #-32]
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; [...]
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; CHECK-NOFP-ARM64: stp x2, x3, [x29, #-48]
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; [...]
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; CHECK-NOFP-ARM64: mov x8, sp
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%addr = alloca i8, i64 %n
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call void @use_addr(i8* %addr)
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; CHECK: bl use_addr
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ret void
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; CHECK-NOFP-AARCH64: sub sp, x29, #64
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; CHECK-NOFP-AARCH64: ldp x29, x30, [sp, #64]
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; CHECK-NOFP-AARCH64: add sp, sp, #80
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; CHECK-NOFP-ARM64: mov sp, x29
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; CHECK-NOFP-ARM64: ldp x29, x30, [sp], #16
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}
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define void @test_alloca_large_frame(i64 %n) {
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; CHECK-LABEL: test_alloca_large_frame:
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; CHECK: stp x20, x19, [sp, #-32]!
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; CHECK: stp x29, x30, [sp, #16]
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; CHECK: add x29, sp, #16
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; CHECK: sub sp, sp, #1953, lsl #12
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; CHECK: sub sp, sp, #512
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%addr1 = alloca i8, i64 %n
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%addr2 = alloca i64, i64 1000000
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call void @use_addr_loc(i8* %addr1, i64* %addr2)
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ret void
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; CHECK: sub sp, x29, #16
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; CHECK: ldp x29, x30, [sp, #16]
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; CHECK: ldp x20, x19, [sp], #32
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}
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declare i8* @llvm.stacksave()
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declare void @llvm.stackrestore(i8*)
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define void @test_scoped_alloca(i64 %n) {
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; CHECK-LABEL: test_scoped_alloca:
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%sp = call i8* @llvm.stacksave()
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; CHECK: mov [[SAVED_SP:x[0-9]+]], sp
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; CHECK: mov [[OLDSP:x[0-9]+]], sp
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%addr = alloca i8, i64 %n
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; CHECK: and [[SPDELTA:x[0-9]+]], {{x[0-9]+}}, #0xfffffffffffffff0
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; CHECK-DAG: sub [[NEWSP:x[0-9]+]], [[OLDSP]], [[SPDELTA]]
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; CHECK: mov sp, [[NEWSP]]
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call void @use_addr(i8* %addr)
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; CHECK: bl use_addr
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call void @llvm.stackrestore(i8* %sp)
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; CHECK: mov sp, [[SAVED_SP]]
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ret void
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}
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