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1; The goal of the test case is to ensure that there's no crash2; on translation of integers with bit width less than 8.3 4; RUN: llc -O0 -mtriple=spirv64-unknown-unknown %s --spirv-ext=+SPV_KHR_bit_instructions -o - | FileCheck %s --check-prefix=CHECK-SPIRV5; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv64-unknown-unknown %s --spirv-ext=+SPV_KHR_bit_instructions -o - -filetype=obj | spirv-val %}6 7; RUN: llc -O0 -mtriple=spirv32-unknown-unknown %s --spirv-ext=+SPV_KHR_bit_instructions -o - | FileCheck %s --check-prefix=CHECK-SPIRV8; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv32-unknown-unknown %s --spirv-ext=+SPV_KHR_bit_instructions -o - -filetype=obj | spirv-val %}9 10; TODO: This test currently fails with LLVM_ENABLE_EXPENSIVE_CHECKS enabled11; XFAIL: expensive_checks12 13; CHECK-SPIRV: OpCapability BitInstructions14; CHECK-SPIRV: OpExtension "SPV_KHR_bit_instructions"15; CHECK-SPIRV: %[[#CharTy:]] = OpTypeInt 8 016; CHECK-SPIRV-NO: %[[#CharTy:]] = OpTypeInt 8 017; CHECK-SPIRV: %[[#Arg:]] = OpFunctionParameter %[[#CharTy]]18; CHECK-SPIRV: %[[#Res:]] = OpBitReverse %[[#CharTy]] %[[#Arg]]19; CHECK-SPIRV: OpReturnValue %[[#Res]]20 21; TODO: Add a check to ensure that there's no behavior change of bitreverse operation22; between the LLVM-IR and SPIR-V for i223 24define spir_func signext i2 @foo(i2 noundef signext %a) {25entry:26 %b = tail call i2 @llvm.bitreverse.i2(i2 %a)27 ret i2 %b28}29 30declare i2 @llvm.bitreverse.i2(i2)31