llvm/test/CodeGen/AArch64/GlobalISel/fpenv.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -global-isel -global-isel-abort=1 %s -o - | FileCheck %s

declare i64 @llvm.get.fpenv.i64()
declare void @llvm.set.fpenv.i64(i64 %fpenv)
declare void @llvm.reset.fpenv()

define i64 @get_fpenv_01() nounwind {
; CHECK-LABEL: get_fpenv_01:
; CHECK:       // %bb.0: // %entry
; CHECK-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT:    add x0, sp, #8
; CHECK-NEXT:    bl fegetenv
; CHECK-NEXT:    ldr x0, [sp, #8]
; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT:    ret
entry:
  %fpenv = call i64 @llvm.get.fpenv.i64()
  ret i64 %fpenv
}

define void @set_fpenv_01(i64 %fpenv) nounwind {
; CHECK-LABEL: set_fpenv_01:
; CHECK:       // %bb.0: // %entry
; CHECK-NEXT:    stp x30, x0, [sp, #-16]! // 8-byte Folded Spill
; CHECK-NEXT:    add x0, sp, #8
; CHECK-NEXT:    bl fesetenv
; CHECK-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-NEXT:    ret
entry:
  call void @llvm.set.fpenv.i64(i64 %fpenv)
  ret void
}

define void @reset_fpenv_01() nounwind {
; CHECK-LABEL: reset_fpenv_01:
; CHECK:       // %bb.0: // %entry
; CHECK-NEXT:    mov x0, #-1 // =0xffffffffffffffff
; CHECK-NEXT:    b fesetenv
entry:
  call void @llvm.reset.fpenv()
  ret void
}