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; RUN: opt -S -dxil-resource-access -mtriple=dxil %s | FileCheck %s
;
; Tests for dynamic indices into arrays in cbuffers.
; cbuffer CB : register(b0) {
; uint s[10]; // offset 0, size 4 (+12) * 10
; uint t[12]; // offset 160, size 4 (+12) * 12
; }
%__cblayout_CB = type <{ <{ [9 x <{ i32, target("dx.Padding", 12) }>], i32 }>, target("dx.Padding", 12), <{ [11 x <{ i32, target("dx.Padding", 12) }>], i32 }> }>
@CB.cb = local_unnamed_addr global target("dx.CBuffer", %__cblayout_CB) poison
; CHECK: define void @f
define void @f(ptr %dst, i32 %idx) {
entry:
%CB.cb_h = tail call target("dx.CBuffer", %__cblayout_CB) @llvm.dx.resource.handlefromimplicitbinding(i32 1, i32 0, i32 1, i32 0, ptr null)
store target("dx.CBuffer", %__cblayout_CB) %CB.cb_h, ptr @CB.cb, align 4
; CHECK: [[CB:%.*]] = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb
%CB.cb = load target("dx.CBuffer", %__cblayout_CB), ptr @CB.cb, align 4
;; s[idx]
;
; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 %idx)
; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
; CHECK: store i32 [[X]], ptr %dst
%s_ptr = call ptr addrspace(2) @llvm.dx.resource.getpointer(target("dx.CBuffer", %__cblayout_CB) %CB.cb, i32 0)
%s_gep = getelementptr <{ i32, target("dx.Padding", 12) }>, ptr addrspace(2) %s_ptr, i32 %idx
%s_load = load i32, ptr addrspace(2) %s_gep, align 4
store i32 %s_load, ptr %dst, align 4
;; t[idx]
;
; CHECK: [[T_IDX:%.*]] = add i32 10, %idx
; CHECK: [[LOAD:%.*]] = call { i32, i32, i32, i32 } @llvm.dx.resource.load.cbufferrow.4.{{.*}}(target("dx.CBuffer", %__cblayout_CB) [[CB]], i32 [[T_IDX]])
; CHECK: [[X:%.*]] = extractvalue { i32, i32, i32, i32 } [[LOAD]], 0
; CHECK: [[PTR:%.*]] = getelementptr inbounds nuw i8, ptr %dst, i32 4
; CHECK: store i32 [[X]], ptr [[PTR]]
%t_ptr = call ptr addrspace(2) @llvm.dx.resource.getpointer(target("dx.CBuffer", %__cblayout_CB) %CB.cb, i32 160)
%t_gep = getelementptr <{ i32, target("dx.Padding", 12) }>, ptr addrspace(2) %t_ptr, i32 %idx
%t_load = load i32, ptr addrspace(2) %t_gep, align 4
%t.i = getelementptr inbounds nuw i8, ptr %dst, i32 4
store i32 %t_load, ptr %t.i, align 4
ret void
}
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