f32-to-i64-single-float.ll 1.79 KB
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=mips64el-mti-linux-gnu -mattr=+single-float < %s | FileCheck %s
; This test casts a 32-bit float to a 64-bit int. This would cause a crash due
; to LLVM incorrectly lowering the float on single-float platforms.

define void @foo(float* %in, i64* %out) {
; CHECK-LABEL: foo:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    daddiu $sp, $sp, -16
; CHECK-NEXT:    .cfi_def_cfa_offset 16
; CHECK-NEXT:    sd $5, 0($sp)
; CHECK-NEXT:    sd $4, 8($sp)
; CHECK-NEXT:    lwc1 $f0, 0($4)
; CHECK-NEXT:    mfc1 $1, $f0
; CHECK-NEXT:    lui $2, 32640
; CHECK-NEXT:    and $2, $1, $2
; CHECK-NEXT:    srl $2, $2, 23
; CHECK-NEXT:    lui $3, 127
; CHECK-NEXT:    ori $3, $3, 65535
; CHECK-NEXT:    addiu $4, $zero, 150
; CHECK-NEXT:    subu $4, $4, $2
; CHECK-NEXT:    and $3, $1, $3
; CHECK-NEXT:    lui $6, 128
; CHECK-NEXT:    or $3, $3, $6
; CHECK-NEXT:    dsll $3, $3, 32
; CHECK-NEXT:    dsrl $3, $3, 32
; CHECK-NEXT:    dsrlv $4, $3, $4
; CHECK-NEXT:    addiu $6, $2, -150
; CHECK-NEXT:    dsllv $3, $3, $6
; CHECK-NEXT:    addiu $2, $2, -127
; CHECK-NEXT:    slti $6, $2, 24
; CHECK-NEXT:    movz $4, $3, $6
; CHECK-NEXT:    sra $1, $1, 31
; CHECK-NEXT:    xor $3, $4, $1
; CHECK-NEXT:    dsubu $1, $3, $1
; CHECK-NEXT:    slti $2, $2, 0
; CHECK-NEXT:    movn $1, $zero, $2
; CHECK-NEXT:    sd $1, 0($5)
; CHECK-NEXT:    jr $ra
; CHECK-NEXT:    daddiu $sp, $sp, 16
entry:
  %in.addr = alloca float*, align 8
  %out.addr = alloca i64*, align 8
  store float* %in, float** %in.addr, align 8
  store i64* %out, i64** %out.addr, align 8
  %0 = load float*, float** %in.addr, align 8
  %1 = load float, float* %0, align 4
  %conv = fptosi float %1 to i64
  %2 = load i64*, i64** %out.addr, align 8
  store i64 %conv, i64* %2, align 8
  ret void
}