1; The goal of the test case is to ensure that there's no crash 2; 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-SPIRV 5; 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-SPIRV 8; 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 enabled 11; XFAIL: expensive_checks 12 13; CHECK-SPIRV: OpCapability BitInstructions 14; CHECK-SPIRV: OpExtension "SPV_KHR_bit_instructions" 15; CHECK-SPIRV: %[[#CharTy:]] = OpTypeInt 8 0 16; CHECK-SPIRV-NO: %[[#CharTy:]] = OpTypeInt 8 0 17; 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 operation 22; between the LLVM-IR and SPIR-V for i2 23 24define spir_func signext i2 @foo(i2 noundef signext %a) { 25entry: 26 %b = tail call i2 @llvm.bitreverse.i2(i2 %a) 27 ret i2 %b 28} 29 30declare i2 @llvm.bitreverse.i2(i2) 31