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; The goal of the test case is to ensure valid SPIR-V code emision
; on translation of integers with bit width less than 8.
; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s --spirv-ext=+SPV_KHR_bit_instructions -o - | FileCheck %s --check-prefix=CHECK-SPIRV
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv64-unknown-unknown %s --spirv-ext=+SPV_KHR_bit_instructions -o - -filetype=obj | spirv-val %}
; RUN: llc -O0 -mtriple=spirv32-unknown-unknown %s --spirv-ext=+SPV_KHR_bit_instructions -o - | FileCheck %s --check-prefix=CHECK-SPIRV
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv32-unknown-unknown %s --spirv-ext=+SPV_KHR_bit_instructions -o - -filetype=obj | spirv-val %}
; TODO: This test currently fails with LLVM_ENABLE_EXPENSIVE_CHECKS enabled
; XFAIL: expensive_checks
; CHECK-SPIRV: OpCapability BitInstructions
; CHECK-SPIRV: OpExtension "SPV_KHR_bit_instructions"
; CHECK-SPIRV: %[[#CharTy:]] = OpTypeInt 8 0
; CHECK-SPIRV-NO: %[[#CharTy:]] = OpTypeInt 8 0
; CHECK-SPIRV-COUNT-2: %[[#]] = OpBitReverse %[[#CharTy]] %[[#]]
; TODO: Add a check to ensure that there's no behavior change of bitreverse operation
; between the LLVM-IR and SPIR-V for i2 and i4
define spir_func void @foo(i2 %a, i4 %b) {
entry:
%res2 = tail call i2 @llvm.bitreverse.i2(i2 %a)
%res4 = tail call i4 @llvm.bitreverse.i4(i4 %b)
ret void
}
declare i2 @llvm.bitreverse.i2(i2)
declare i4 @llvm.bitreverse.i4(i4)
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