llvm-6502/test/CodeGen/AArch64/arm64-fast-isel-ret.ll
Juergen Ributzka 5d6365c80c [FastISel][AArch64] Use the correct register class to make the MI verifier happy.
This is mostly achieved by providing the correct register class manually,
because getRegClassFor always returns the GPR*AllRegClass for MVT::i32 and
MVT::i64.

Also cleanup the code to use the FastEmitInst_* method whenever possible. This
makes sure that the operands' register class is properly constrained. For all
the remaining cases this adds the missing constrainOperandRegClass calls for
each operand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216225 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-21 20:57:57 +00:00

64 lines
1.3 KiB
LLVM

; RUN: llc -O0 -fast-isel-abort -verify-machineinstrs -mtriple=arm64-apple-darwin < %s | FileCheck %s
;; Test returns.
define void @t0() nounwind ssp {
entry:
; CHECK: t0
; CHECK: ret
ret void
}
define i32 @t1(i32 %a) nounwind ssp {
entry:
; CHECK: t1
; CHECK: str w0, [sp, #12]
; CHECK-NEXT: ldr w0, [sp, #12]
; CHECK: ret
%a.addr = alloca i32, align 4
store i32 %a, i32* %a.addr, align 4
%tmp = load i32* %a.addr, align 4
ret i32 %tmp
}
define i64 @t2(i64 %a) nounwind ssp {
entry:
; CHECK: t2
; CHECK: str x0, [sp, #8]
; CHECK-NEXT: ldr x0, [sp, #8]
; CHECK: ret
%a.addr = alloca i64, align 8
store i64 %a, i64* %a.addr, align 8
%tmp = load i64* %a.addr, align 8
ret i64 %tmp
}
define signext i16 @ret_i16(i16 signext %a) nounwind {
entry:
; CHECK: @ret_i16
; CHECK: sxth w0, w0
%a.addr = alloca i16, align 1
store i16 %a, i16* %a.addr, align 1
%0 = load i16* %a.addr, align 1
ret i16 %0
}
define signext i8 @ret_i8(i8 signext %a) nounwind {
entry:
; CHECK: @ret_i8
; CHECK: sxtb w0, w0
%a.addr = alloca i8, align 1
store i8 %a, i8* %a.addr, align 1
%0 = load i8* %a.addr, align 1
ret i8 %0
}
define signext i1 @ret_i1(i1 signext %a) nounwind {
entry:
; CHECK: @ret_i1
; CHECK: and w0, w0, #0x1
%a.addr = alloca i1, align 1
store i1 %a, i1* %a.addr, align 1
%0 = load i1* %a.addr, align 1
ret i1 %0
}