; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan-compute %s -o - -filetype=obj | spirv-val %} ; RUN: llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | FileCheck %s target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1" target triple = "spirv-unknown-vulkan-compute" define internal spir_func void @main() #0 { ; CHECK: %[[#entry:]] = OpLabel ; CHECK: OpBranch %[[#while_cond:]] entry: %0 = call token @llvm.experimental.convergence.entry() %idx = alloca i32, align 4 store i32 -1, ptr %idx, align 4 br label %while.cond ; CHECK: %[[#while_cond]] = OpLabel ; CHECK: OpBranchConditional %[[#cond:]] %[[#while_body:]] %[[#while_end:]] while.cond: %1 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ] %2 = load i32, ptr %idx, align 4 %cmp = icmp ne i32 %2, 0 br i1 %cmp, label %while.body, label %while.end ; CHECK: %[[#while_end]] = OpLabel ; CHECK-NEXT: OpReturn while.end: ret void ; CHECK: %[[#while_body]] = OpLabel ; CHECK: OpBranch %[[#while_cond]] while.body: %3 = call i32 @__hlsl_wave_get_lane_index() [ "convergencectrl"(token %1) ] store i32 %3, ptr %idx, align 4 br label %while.cond } declare token @llvm.experimental.convergence.entry() #2 declare token @llvm.experimental.convergence.loop() #2 declare i32 @__hlsl_wave_get_lane_index() #3 attributes #0 = { convergent noinline norecurse nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" } attributes #1 = { convergent norecurse "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } attributes #2 = { convergent nocallback nofree nosync nounwind willreturn memory(none) } attributes #3 = { convergent } !llvm.module.flags = !{!0, !1} !0 = !{i32 1, !"wchar_size", i32 4} !1 = !{i32 4, !"dx.disable_optimizations", i32 1}