aboutsummaryrefslogtreecommitdiff
path: root/test/CodeGen/R600/select64.ll
blob: dba25e3bd21e6da8eb349cb4d1dd22561e141628 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s

; CHECK-LABEL: @select0
; i64 select should be split into two i32 selects, and we shouldn't need
; to use a shfit to extract the hi dword of the input.
; CHECK-NOT: S_LSHR_B64
; CHECK: V_CNDMASK
; CHECK: V_CNDMASK
define void @select0(i64 addrspace(1)* %out, i32 %cond, i64 %in) {
entry:
  %0 = icmp ugt i32 %cond, 5
  %1 = select i1 %0, i64 0, i64 %in
  store i64 %1, i64 addrspace(1)* %out
  ret void
}

; CHECK-LABEL: @select_trunc_i64
; CHECK: V_CNDMASK_B32
; CHECK-NOT: V_CNDMASK_B32
define void @select_trunc_i64(i32 addrspace(1)* %out, i32 %cond, i64 %in) nounwind {
  %cmp = icmp ugt i32 %cond, 5
  %sel = select i1 %cmp, i64 0, i64 %in
  %trunc = trunc i64 %sel to i32
  store i32 %trunc, i32 addrspace(1)* %out, align 4
  ret void
}

; CHECK-LABEL: @select_trunc_i64_2
; CHECK: V_CNDMASK_B32
; CHECK-NOT: V_CNDMASK_B32
define void @select_trunc_i64_2(i32 addrspace(1)* %out, i32 %cond, i64 %a, i64 %b) nounwind {
  %cmp = icmp ugt i32 %cond, 5
  %sel = select i1 %cmp, i64 %a, i64 %b
  %trunc = trunc i64 %sel to i32
  store i32 %trunc, i32 addrspace(1)* %out, align 4
  ret void
}

; CHECK-LABEL: @v_select_trunc_i64_2
; CHECK: V_CNDMASK_B32
; CHECK-NOT: V_CNDMASK_B32
define void @v_select_trunc_i64_2(i32 addrspace(1)* %out, i32 %cond, i64 addrspace(1)* %aptr, i64 addrspace(1)* %bptr) nounwind {
  %cmp = icmp ugt i32 %cond, 5
  %a = load i64 addrspace(1)* %aptr, align 8
  %b = load i64 addrspace(1)* %bptr, align 8
  %sel = select i1 %cmp, i64 %a, i64 %b
  %trunc = trunc i64 %sel to i32
  store i32 %trunc, i32 addrspace(1)* %out, align 4
  ret void
}