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; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -mcpu=kaveri -amdgpu-promote-alloca < %s | FileCheck %s
target datalayout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-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"
; CHECK-LABEL: @lds_promoted_alloca_select_invalid_pointer_operand(
; CHECK: %alloca = alloca i32
; CHECK: select i1 undef, i32 addrspace(5)* undef, i32 addrspace(5)* %alloca
define amdgpu_kernel void @lds_promoted_alloca_select_invalid_pointer_operand() #0 {
%alloca = alloca i32, align 4, addrspace(5)
%select = select i1 undef, i32 addrspace(5)* undef, i32 addrspace(5)* %alloca
store i32 0, i32 addrspace(5)* %select, align 4
ret void
}
; CHECK-LABEL: @lds_promote_alloca_select_two_derived_pointers(
; CHECK: [[ARRAYGEP:%[0-9]+]] = getelementptr inbounds [256 x [16 x i32]], [256 x [16 x i32]] addrspace(3)* @lds_promote_alloca_select_two_derived_pointers.alloca, i32 0, i32 %{{[0-9]+}}
; CHECK: %ptr0 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(3)* [[ARRAYGEP]], i32 0, i32 %a
; CHECK: %ptr1 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(3)* [[ARRAYGEP]], i32 0, i32 %b
; CHECK: %select = select i1 undef, i32 addrspace(3)* %ptr0, i32 addrspace(3)* %ptr1
; CHECK: store i32 0, i32 addrspace(3)* %select, align 4
define amdgpu_kernel void @lds_promote_alloca_select_two_derived_pointers(i32 %a, i32 %b) #0 {
%alloca = alloca [16 x i32], align 4, addrspace(5)
%ptr0 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 %a
%ptr1 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 %b
%select = select i1 undef, i32 addrspace(5)* %ptr0, i32 addrspace(5)* %ptr1
store i32 0, i32 addrspace(5)* %select, align 4
ret void
}
; FIXME: This should be promotable but requires knowing that both will be promoted first.
; CHECK-LABEL: @lds_promote_alloca_select_two_allocas(
; CHECK: %alloca0 = alloca i32, i32 16, align 4
; CHECK: %alloca1 = alloca i32, i32 16, align 4
; CHECK: %ptr0 = getelementptr inbounds i32, i32 addrspace(5)* %alloca0, i32 %a
; CHECK: %ptr1 = getelementptr inbounds i32, i32 addrspace(5)* %alloca1, i32 %b
; CHECK: %select = select i1 undef, i32 addrspace(5)* %ptr0, i32 addrspace(5)* %ptr1
define amdgpu_kernel void @lds_promote_alloca_select_two_allocas(i32 %a, i32 %b) #0 {
%alloca0 = alloca i32, i32 16, align 4, addrspace(5)
%alloca1 = alloca i32, i32 16, align 4, addrspace(5)
%ptr0 = getelementptr inbounds i32, i32 addrspace(5)* %alloca0, i32 %a
%ptr1 = getelementptr inbounds i32, i32 addrspace(5)* %alloca1, i32 %b
%select = select i1 undef, i32 addrspace(5)* %ptr0, i32 addrspace(5)* %ptr1
store i32 0, i32 addrspace(5)* %select, align 4
ret void
}
; TODO: Maybe this should be canonicalized to select on the constant and GEP after.
; CHECK-LABEL: @lds_promote_alloca_select_two_derived_constant_pointers(
; CHECK: [[ARRAYGEP:%[0-9]+]] = getelementptr inbounds [256 x [16 x i32]], [256 x [16 x i32]] addrspace(3)* @lds_promote_alloca_select_two_derived_constant_pointers.alloca, i32 0, i32 %{{[0-9]+}}
; CHECK: %ptr0 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(3)* [[ARRAYGEP]], i32 0, i32 1
; CHECK: %ptr1 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(3)* [[ARRAYGEP]], i32 0, i32 3
; CHECK: %select = select i1 undef, i32 addrspace(3)* %ptr0, i32 addrspace(3)* %ptr1
; CHECK: store i32 0, i32 addrspace(3)* %select, align 4
define amdgpu_kernel void @lds_promote_alloca_select_two_derived_constant_pointers() #0 {
%alloca = alloca [16 x i32], align 4, addrspace(5)
%ptr0 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 1
%ptr1 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 3
%select = select i1 undef, i32 addrspace(5)* %ptr0, i32 addrspace(5)* %ptr1
store i32 0, i32 addrspace(5)* %select, align 4
ret void
}
; FIXME: Can be promoted, but we'd have to recursively show that the select
; operands all point to the same alloca.
; CHECK-LABEL: @lds_promoted_alloca_select_input_select(
; CHECK: alloca
define amdgpu_kernel void @lds_promoted_alloca_select_input_select(i32 %a, i32 %b, i32 %c, i1 %c1, i1 %c2) #0 {
%alloca = alloca [16 x i32], align 4, addrspace(5)
%ptr0 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 %a
%ptr1 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 %b
%ptr2 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 %c
%select0 = select i1 %c1, i32 addrspace(5)* %ptr0, i32 addrspace(5)* %ptr1
%select1 = select i1 %c2, i32 addrspace(5)* %select0, i32 addrspace(5)* %ptr2
store i32 0, i32 addrspace(5)* %select1, align 4
ret void
}
define amdgpu_kernel void @lds_promoted_alloca_select_input_phi(i32 %a, i32 %b, i32 %c) #0 {
entry:
%alloca = alloca [16 x i32], align 4, addrspace(5)
%ptr0 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 %a
%ptr1 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 %b
store i32 0, i32 addrspace(5)* %ptr0
br i1 undef, label %bb1, label %bb2
bb1:
%ptr2 = getelementptr inbounds [16 x i32], [16 x i32] addrspace(5)* %alloca, i32 0, i32 %c
%select0 = select i1 undef, i32 addrspace(5)* undef, i32 addrspace(5)* %ptr2
store i32 0, i32 addrspace(5)* %ptr1
br label %bb2
bb2:
%phi.ptr = phi i32 addrspace(5)* [ %ptr0, %entry ], [ %select0, %bb1 ]
%select1 = select i1 undef, i32 addrspace(5)* %phi.ptr, i32 addrspace(5)* %ptr1
store i32 0, i32 addrspace(5)* %select1, align 4
ret void
}
; CHECK-LABEL: @select_null_rhs(
; CHECK-NOT: alloca
; CHECK: select i1 %tmp2, double addrspace(3)* %{{[0-9]+}}, double addrspace(3)* null
define amdgpu_kernel void @select_null_rhs(double addrspace(1)* nocapture %arg, i32 %arg1) #1 {
bb:
%tmp = alloca double, align 8, addrspace(5)
store double 0.000000e+00, double addrspace(5)* %tmp, align 8
%tmp2 = icmp eq i32 %arg1, 0
%tmp3 = select i1 %tmp2, double addrspace(5)* %tmp, double addrspace(5)* null
store double 1.000000e+00, double addrspace(5)* %tmp3, align 8
%tmp4 = load double, double addrspace(5)* %tmp, align 8
store double %tmp4, double addrspace(1)* %arg
ret void
}
; CHECK-LABEL: @select_null_lhs(
; CHECK-NOT: alloca
; CHECK: select i1 %tmp2, double addrspace(3)* null, double addrspace(3)* %{{[0-9]+}}
define amdgpu_kernel void @select_null_lhs(double addrspace(1)* nocapture %arg, i32 %arg1) #1 {
bb:
%tmp = alloca double, align 8, addrspace(5)
store double 0.000000e+00, double addrspace(5)* %tmp, align 8
%tmp2 = icmp eq i32 %arg1, 0
%tmp3 = select i1 %tmp2, double addrspace(5)* null, double addrspace(5)* %tmp
store double 1.000000e+00, double addrspace(5)* %tmp3, align 8
%tmp4 = load double, double addrspace(5)* %tmp, align 8
store double %tmp4, double addrspace(1)* %arg
ret void
}
attributes #0 = { norecurse nounwind "amdgpu-waves-per-eu"="1,1" "amdgpu-flat-work-group-size"="1,256" }
attributes #1 = { norecurse nounwind }
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