1 ; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -mcpu=kaveri -passes=amdgpu-promote-alloca < %s | FileCheck %s
3 target datalayout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-p7:160:256:256:32-p8:128:128-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5"
5 ; CHECK-LABEL: @lds_promoted_alloca_select_invalid_pointer_operand(
6 ; CHECK: %alloca = alloca i32
7 ; CHECK: select i1 undef, ptr addrspace(5) undef, ptr addrspace(5) %alloca
8 define amdgpu_kernel void @lds_promoted_alloca_select_invalid_pointer_operand() #0 {
9 %alloca = alloca i32, align 4, addrspace(5)
10 %select = select i1 undef, ptr addrspace(5) undef, ptr addrspace(5) %alloca
11 store i32 0, ptr addrspace(5) %select, align 4
15 ; CHECK-LABEL: @lds_promote_alloca_select_two_derived_pointers(
16 ; CHECK: [[ARRAYGEP:%[0-9]+]] = getelementptr inbounds [256 x [16 x i32]], ptr addrspace(3) @lds_promote_alloca_select_two_derived_pointers.alloca, i32 0, i32 %{{[0-9]+}}
17 ; CHECK: %ptr0 = getelementptr inbounds [16 x i32], ptr addrspace(3) [[ARRAYGEP]], i32 0, i32 %a
18 ; CHECK: %ptr1 = getelementptr inbounds [16 x i32], ptr addrspace(3) [[ARRAYGEP]], i32 0, i32 %b
19 ; CHECK: %select = select i1 undef, ptr addrspace(3) %ptr0, ptr addrspace(3) %ptr1
20 ; CHECK: store i32 0, ptr addrspace(3) %select, align 4
21 define amdgpu_kernel void @lds_promote_alloca_select_two_derived_pointers(i32 %a, i32 %b) #0 {
22 %alloca = alloca [16 x i32], align 4, addrspace(5)
23 %ptr0 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 %a
24 %ptr1 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 %b
25 %select = select i1 undef, ptr addrspace(5) %ptr0, ptr addrspace(5) %ptr1
26 store i32 0, ptr addrspace(5) %select, align 4
30 ; FIXME: This should be promotable but requires knowing that both will be promoted first.
32 ; CHECK-LABEL: @lds_promote_alloca_select_two_allocas(
33 ; CHECK: %alloca0 = alloca i32, i32 16, align 4
34 ; CHECK: %alloca1 = alloca i32, i32 16, align 4
35 ; CHECK: %ptr0 = getelementptr inbounds i32, ptr addrspace(5) %alloca0, i32 %a
36 ; CHECK: %ptr1 = getelementptr inbounds i32, ptr addrspace(5) %alloca1, i32 %b
37 ; CHECK: %select = select i1 undef, ptr addrspace(5) %ptr0, ptr addrspace(5) %ptr1
38 define amdgpu_kernel void @lds_promote_alloca_select_two_allocas(i32 %a, i32 %b) #0 {
39 %alloca0 = alloca i32, i32 16, align 4, addrspace(5)
40 %alloca1 = alloca i32, i32 16, align 4, addrspace(5)
41 %ptr0 = getelementptr inbounds i32, ptr addrspace(5) %alloca0, i32 %a
42 %ptr1 = getelementptr inbounds i32, ptr addrspace(5) %alloca1, i32 %b
43 %select = select i1 undef, ptr addrspace(5) %ptr0, ptr addrspace(5) %ptr1
44 store i32 0, ptr addrspace(5) %select, align 4
48 ; TODO: Maybe this should be canonicalized to select on the constant and GEP after.
49 ; CHECK-LABEL: @lds_promote_alloca_select_two_derived_constant_pointers(
50 ; CHECK: [[ARRAYGEP:%[0-9]+]] = getelementptr inbounds [256 x [16 x i32]], ptr addrspace(3) @lds_promote_alloca_select_two_derived_constant_pointers.alloca, i32 0, i32 %{{[0-9]+}}
51 ; CHECK: %ptr0 = getelementptr inbounds [16 x i32], ptr addrspace(3) [[ARRAYGEP]], i32 0, i32 1
52 ; CHECK: %ptr1 = getelementptr inbounds [16 x i32], ptr addrspace(3) [[ARRAYGEP]], i32 0, i32 3
53 ; CHECK: %select = select i1 undef, ptr addrspace(3) %ptr0, ptr addrspace(3) %ptr1
54 ; CHECK: store i32 0, ptr addrspace(3) %select, align 4
55 define amdgpu_kernel void @lds_promote_alloca_select_two_derived_constant_pointers() #0 {
56 %alloca = alloca [16 x i32], align 4, addrspace(5)
57 %ptr0 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 1
58 %ptr1 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 3
59 %select = select i1 undef, ptr addrspace(5) %ptr0, ptr addrspace(5) %ptr1
60 store i32 0, ptr addrspace(5) %select, align 4
64 ; FIXME: Can be promoted, but we'd have to recursively show that the select
65 ; operands all point to the same alloca.
67 ; CHECK-LABEL: @lds_promoted_alloca_select_input_select(
69 define amdgpu_kernel void @lds_promoted_alloca_select_input_select(i32 %a, i32 %b, i32 %c, i1 %c1, i1 %c2) #0 {
70 %alloca = alloca [16 x i32], align 4, addrspace(5)
71 %ptr0 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 %a
72 %ptr1 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 %b
73 %ptr2 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 %c
74 %select0 = select i1 %c1, ptr addrspace(5) %ptr0, ptr addrspace(5) %ptr1
75 %select1 = select i1 %c2, ptr addrspace(5) %select0, ptr addrspace(5) %ptr2
76 store i32 0, ptr addrspace(5) %select1, align 4
80 define amdgpu_kernel void @lds_promoted_alloca_select_input_phi(i32 %a, i32 %b, i32 %c, i1 %c0) #0 {
82 %alloca = alloca [16 x i32], align 4, addrspace(5)
83 %ptr0 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 %a
84 %ptr1 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 %b
85 store i32 0, ptr addrspace(5) %ptr0
86 br i1 %c0, label %bb1, label %bb2
89 %ptr2 = getelementptr inbounds [16 x i32], ptr addrspace(5) %alloca, i32 0, i32 %c
90 %select0 = select i1 undef, ptr addrspace(5) undef, ptr addrspace(5) %ptr2
91 store i32 0, ptr addrspace(5) %ptr1
95 %phi.ptr = phi ptr addrspace(5) [ %ptr0, %entry ], [ %select0, %bb1 ]
96 %select1 = select i1 undef, ptr addrspace(5) %phi.ptr, ptr addrspace(5) %ptr1
97 store i32 0, ptr addrspace(5) %select1, align 4
101 ; CHECK-LABEL: @select_null_rhs(
103 ; CHECK: select i1 %tmp2, ptr addrspace(3) %{{[0-9]+}}, ptr addrspace(3) null
104 define amdgpu_kernel void @select_null_rhs(ptr addrspace(1) nocapture %arg, i32 %arg1) #1 {
106 %tmp = alloca double, align 8, addrspace(5)
107 store double 0.000000e+00, ptr addrspace(5) %tmp, align 8
108 %tmp2 = icmp eq i32 %arg1, 0
109 %tmp3 = select i1 %tmp2, ptr addrspace(5) %tmp, ptr addrspace(5) null
110 store double 1.000000e+00, ptr addrspace(5) %tmp3, align 8
111 %tmp4 = load double, ptr addrspace(5) %tmp, align 8
112 store double %tmp4, ptr addrspace(1) %arg
116 ; CHECK-LABEL: @select_null_lhs(
118 ; CHECK: select i1 %tmp2, ptr addrspace(3) null, ptr addrspace(3) %{{[0-9]+}}
119 define amdgpu_kernel void @select_null_lhs(ptr addrspace(1) nocapture %arg, i32 %arg1) #1 {
121 %tmp = alloca double, align 8, addrspace(5)
122 store double 0.000000e+00, ptr addrspace(5) %tmp, align 8
123 %tmp2 = icmp eq i32 %arg1, 0
124 %tmp3 = select i1 %tmp2, ptr addrspace(5) null, ptr addrspace(5) %tmp
125 store double 1.000000e+00, ptr addrspace(5) %tmp3, align 8
126 %tmp4 = load double, ptr addrspace(5) %tmp, align 8
127 store double %tmp4, ptr addrspace(1) %arg
131 attributes #0 = { norecurse nounwind "amdgpu-waves-per-eu"="1,1" "amdgpu-flat-work-group-size"="1,256" }
132 attributes #1 = { norecurse nounwind }