expressions-gfx9.s
2.11 KB
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
// RUN: not llvm-mc -arch=amdgcn -mcpu=gfx900 -show-encoding %s | FileCheck %s --check-prefix=GFX9
// RUN: not llvm-mc -arch=amdgcn -mcpu=gfx900 -show-encoding %s 2>&1 | FileCheck %s --check-prefix=NOGFX9
//===----------------------------------------------------------------------===//
// Relocatable expressions cannot be used with SDWA modifiers.
//===----------------------------------------------------------------------===//
v_mov_b32_sdwa v1, sext(u)
// NOGFX9: error: expected an absolute expression
//===----------------------------------------------------------------------===//
// Instructions can use only one literal.
// Relocatable expressions are counted as literals.
//===----------------------------------------------------------------------===//
s_sub_u32 s0, 123, u
// NOGFX9: error: only one literal operand is allowed
s_sub_u32 s0, u, u
// NOGFX9: error: only one literal operand is allowed
s_sub_u32 s0, u, u1
// NOGFX9: error: only one literal operand is allowed
v_bfe_u32 v0, v2, v3, u
// NOGFX9: error: invalid literal operand
//===----------------------------------------------------------------------===//
// Constant expressions may be used with 'sext' modifier
//===----------------------------------------------------------------------===//
i1=1
v_mov_b32_sdwa v1, sext(i1-2)
// GFX9: v_mov_b32_sdwa v1, sext(-1) dst_sel:DWORD dst_unused:UNUSED_PRESERVE src0_sel:DWORD ; encoding: [0xf9,0x02,0x02,0x7e,0xc1,0x16,0x8e,0x00]
v_mov_b32_sdwa v1, sext(-2+i1)
// GFX9: v_mov_b32_sdwa v1, sext(-1) dst_sel:DWORD dst_unused:UNUSED_PRESERVE src0_sel:DWORD ; encoding: [0xf9,0x02,0x02,0x7e,0xc1,0x16,0x8e,0x00]
//===----------------------------------------------------------------------===//
// Constant expressions may be used with op_sel* and neg_* modifiers.
//===----------------------------------------------------------------------===//
v_pk_add_u16 v1, v2, v3 op_sel:[2-i1,i1-1]
// GFX9: v_pk_add_u16 v1, v2, v3 op_sel:[1,0] ; encoding: [0x01,0x08,0x8a,0xd3,0x02,0x07,0x02,0x18]
v_pk_add_u16 v1, v2, v3 neg_lo:[2-i1,i1-1]
// GFX9: v_pk_add_u16 v1, v2, v3 neg_lo:[1,0] ; encoding: [0x01,0x00,0x8a,0xd3,0x02,0x07,0x02,0x38]