llvm-6502/test/CodeGen/AArch64/arm64-fast-isel-materialize.ll
Juergen Ributzka 3ef392c4e2 [FastISel][AArch64] Use the proper FMOV instruction to materialize a +0.0.
Use FMOVWSr/FMOVXDr instead of FMOVSr/FMOVDr, which have the proper register
class to be used with the zero register. This makes the MachineInstruction
verifier happy again.

This is related to <rdar://problem/18027157>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216040 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-20 01:10:36 +00:00

42 lines
1.0 KiB
LLVM

; RUN: llc -O0 -fast-isel-abort -verify-machineinstrs -mtriple=arm64-apple-darwin < %s | FileCheck %s
; Materialize using fmov
define float @fmov_float1() {
; CHECK-LABEL: fmov_float1
; CHECK: fmov s0, #1.25000000
ret float 1.250000e+00
}
define float @fmov_float2() {
; CHECK-LABEL: fmov_float2
; CHECK: fmov s0, wzr
ret float 0.0e+00
}
define double @fmov_double1() {
; CHECK-LABEL: fmov_double1
; CHECK: fmov d0, #1.25000000
ret double 1.250000e+00
}
define double @fmov_double2() {
; CHECK-LABEL: fmov_double2
; CHECK: fmov d0, xzr
ret double 0.0e+00
}
; Materialize from constant pool
define float @cp_float() {
; CHECK-LABEL: cp_float
; CHECK: adrp [[REG:x[0-9]+]], {{lCPI[0-9]+_0}}@PAGE
; CHECK-NEXT: ldr s0, {{\[}}[[REG]], {{lCPI[0-9]+_0}}@PAGEOFF{{\]}}
ret float 0x400921FB60000000
}
define double @cp_double() {
; CHECK-LABEL: cp_double
; CHECK: adrp [[REG:x[0-9]+]], {{lCPI[0-9]+_0}}@PAGE
; CHECK-NEXT: ldr d0, {{\[}}[[REG]], {{lCPI[0-9]+_0}}@PAGEOFF{{\]}}
ret double 0x400921FB54442D18
}