xref: /llvm-project/llvm/test/CodeGen/SPIRV/transcoding/bitcast.ll (revision 0a443f13b49b3f392461a0bb60b0146cfc4607c7)
18468e674SAndrey Tretyakov; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s
2*0a443f13SVyacheslav Levytskyy; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv64-unknown-unknown %s -o - -filetype=obj | spirv-val %}
38468e674SAndrey Tretyakov
48468e674SAndrey Tretyakov;; Check the bitcast is translated back to bitcast
58468e674SAndrey Tretyakov
68468e674SAndrey Tretyakov; CHECK: Bitcast
78468e674SAndrey Tretyakov
88468e674SAndrey Tretyakovdefine spir_kernel void @test_fn(<2 x i8> addrspace(1)* nocapture readonly %src, i16 addrspace(1)* nocapture %dst) {
98468e674SAndrey Tretyakoventry:
108468e674SAndrey Tretyakov  %call = tail call spir_func i64 @_Z13get_global_idj(i32 0)
118468e674SAndrey Tretyakov  %sext = shl i64 %call, 32
128468e674SAndrey Tretyakov  %idxprom = ashr exact i64 %sext, 32
138468e674SAndrey Tretyakov  %arrayidx = getelementptr inbounds <2 x i8>, <2 x i8> addrspace(1)* %src, i64 %idxprom
148468e674SAndrey Tretyakov  %0 = load <2 x i8>, <2 x i8> addrspace(1)* %arrayidx, align 2
158468e674SAndrey Tretyakov  %astype = bitcast <2 x i8> %0 to i16
168468e674SAndrey Tretyakov  %arrayidx2 = getelementptr inbounds i16, i16 addrspace(1)* %dst, i64 %idxprom
178468e674SAndrey Tretyakov  store i16 %astype, i16 addrspace(1)* %arrayidx2, align 2
188468e674SAndrey Tretyakov  ret void
198468e674SAndrey Tretyakov}
208468e674SAndrey Tretyakov
218468e674SAndrey Tretyakovdeclare spir_func i64 @_Z13get_global_idj(i32)
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