tests_lit/llvm2ice_tests/bitcast.ll

; Trivial smoke test of bitcast between integer and FP types.

; RUN: %p2i --filetype=obj --disassemble -i %s --args -O2 | FileCheck %s
; RUN: %p2i --filetype=obj --disassemble -i %s --args -Om1 | FileCheck %s

; RUN: %if --need=allow_dump --need=target_ARM32 --command %p2i --filetype=asm \
; RUN:   --target arm32 -i %s --args -O2 --skip-unimplemented \
; RUN:   | %if --need=allow_dump --need=target_ARM32 --command FileCheck %s \
; RUN:   --check-prefix=ARM32

; RUN: %if --need=allow_dump --need=target_ARM32 --command %p2i --filetype=asm \
; RUN:   --target arm32 -i %s --args -Om1 --skip-unimplemented \
; RUN:   | %if --need=allow_dump --need=target_ARM32 --command FileCheck %s \
; RUN:   --check-prefix=ARM32

define internal i32 @cast_f2i(float %f) {
entry:
  %v0 = bitcast float %f to i32
  ret i32 %v0
}
; CHECK-LABEL: cast_f2i
; CHECK: mov eax
; ARM32-LABEL: cast_f2i
; ARM32: vmov r{{[0-9]+}}, s{{[0-9]+}}

define internal float @cast_i2f(i32 %i) {
entry:
  %v0 = bitcast i32 %i to float
  ret float %v0
}
; CHECK-LABEL: cast_i2f
; CHECK: fld DWORD PTR
; ARM32-LABEL: cast_i2f
; ARM32: vmov s{{[0-9]+}}, r{{[0-9]+}}

define internal i64 @cast_d2ll(double %d) {
entry:
  %v0 = bitcast double %d to i64
  ret i64 %v0
}
; CHECK-LABEL: cast_d2ll
; CHECK: mov edx
; ARM32-LABEL: cast_d2ll
; ARM32: vmov r{{[0-9]+}}, r{{[0-9]+}}, d{{[0-9]+}}

define internal i64 @cast_d2ll_const() {
entry:
  %v0 = bitcast double 0x12345678901234 to i64
  ret i64 %v0
}
; CHECK-LABEL: cast_d2ll_const
; CHECK: mov e{{..}},DWORD PTR ds:0x0 {{.*}} .L$double$0
; CHECK: mov e{{..}},DWORD PTR ds:0x4 {{.*}} .L$double$0
; ARM32-LABEL: cast_d2ll_const
; ARM32-DAG: movw [[ADDR:r[0-9]+]], #:lower16:.L$
; ARM32-DAG: movt [[ADDR]], #:upper16:.L$
; ARM32-DAG: vldr [[DREG:d[0-9]+]], {{\[}}[[ADDR]], #0{{\]}}
; ARM32: vmov r{{[0-9]+}}, r{{[0-9]+}}, [[DREG]]

define internal double @cast_ll2d(i64 %ll) {
entry:
  %v0 = bitcast i64 %ll to double
  ret double %v0
}
; CHECK-LABEL: cast_ll2d
; CHECK: fld QWORD PTR
; ARM32-LABEL: cast_ll2d
; ARM32: vmov d{{[0-9]+}}, r{{[0-9]+}}, r{{[0-9]+}}

define internal double @cast_ll2d_const() {
entry:
  %v0 = bitcast i64 12345678901234 to double
  ret double %v0
}
; CHECK-LABEL: cast_ll2d_const
; CHECK: mov {{.*}},0x73ce2ff2
; CHECK: mov {{.*}},0xb3a
; CHECK: fld QWORD PTR
; ARM32-LABEL: cast_ll2d_const
; ARM32-DAG: movw [[REG0:r[0-9]+]], #12274
; ARM32-DAG: movt [[REG0:r[0-9]+]], #29646
; ARM32-DAG: movw [[REG1:r[0-9]+]], #2874
; ARM32: vmov d{{[0-9]+}}, [[REG0]], [[REG1]]