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llvm-project/llvm/test/CodeGen/AArch64/fast-isel-memcpy.ll

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Change the fast-isel-abort option from bool to int to enable "levels" Summary: Currently fast-isel-abort will only abort for regular instructions, and just warn for function calls, terminators, function arguments. There is already fast-isel-abort-args but nothing for calls and terminators. This change turns the fast-isel-abort options into an integer option, so that multiple levels of strictness can be defined. This will help no being surprised when the "abort" option indeed does not abort, and enables the possibility to write test that verifies that no intrinsics are forgotten by fast-isel. Reviewers: resistor, echristo Subscribers: jfb, llvm-commits Differential Revision: http://reviews.llvm.org/D7941 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 230775
2015-02-28 02:32:11 +08:00
; RUN: llc -mtriple=aarch64-apple-darwin -fast-isel -fast-isel-abort=1 -verify-machineinstrs < %s | FileCheck %s
[FastISel][AArch64] Fix a missing nullptr check in 'computeAddress'. The load/store value type is currently not available when lowering the memcpy intrinsic. Add the missing nullptr check to support this in 'computeAddress'. Fixes rdar://problem/19178947. llvm-svn: 223818
2014-12-10 03:44:38 +08:00
; Test that we don't segfault.
; CHECK-LABEL: test
; CHECK: ldr [[REG1:x[0-9]+]], [x1]
; CHECK-NEXT: and [[REG2:x[0-9]+]], x0, #0x7fffffffffffffff
; CHECK-NEXT: str [[REG1]], {{\[}}[[REG2]]{{\]}}
define void @test(i64 %a, i8* %b) {
%1 = and i64 %a, 9223372036854775807
%2 = inttoptr i64 %1 to i8*
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %b, i64 8, i32 8, i1 false)
ret void
}
declare void @llvm.memcpy.p0i8.p0i8.i64(i8*, i8*, i64, i32, i1)