1; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan-compute %s -o - -filetype=obj | spirv-val %} 2; RUN: llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | FileCheck %s 3 4target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1" 5target triple = "spirv-unknown-vulkan-compute" 6 7define internal spir_func void @main() #0 { 8 9; CHECK: %[[#entry:]] = OpLabel 10; CHECK: OpBranch %[[#while_cond:]] 11entry: 12 %0 = call token @llvm.experimental.convergence.entry() 13 %idx = alloca i32, align 4 14 store i32 -1, ptr %idx, align 4 15 br label %while.cond 16 17; CHECK: %[[#while_cond]] = OpLabel 18; CHECK: OpBranchConditional %[[#cond:]] %[[#while_body:]] %[[#while_end:]] 19while.cond: 20 %1 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ] 21 %2 = load i32, ptr %idx, align 4 22 %cmp = icmp ne i32 %2, 0 23 br i1 %cmp, label %while.body, label %while.end 24 25; CHECK: %[[#while_end]] = OpLabel 26; CHECK-NEXT: OpReturn 27while.end: 28 ret void 29 30; CHECK: %[[#while_body]] = OpLabel 31; CHECK: OpBranch %[[#while_cond]] 32while.body: 33 %3 = call i32 @__hlsl_wave_get_lane_index() [ "convergencectrl"(token %1) ] 34 store i32 %3, ptr %idx, align 4 35 br label %while.cond 36 37} 38 39declare token @llvm.experimental.convergence.entry() #2 40declare token @llvm.experimental.convergence.loop() #2 41declare i32 @__hlsl_wave_get_lane_index() #3 42 43attributes #0 = { convergent noinline norecurse nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" } 44attributes #1 = { convergent norecurse "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } 45attributes #2 = { convergent nocallback nofree nosync nounwind willreturn memory(none) } 46attributes #3 = { convergent } 47 48!llvm.module.flags = !{!0, !1} 49 50!0 = !{i32 1, !"wchar_size", i32 4} 51!1 = !{i32 4, !"dx.disable_optimizations", i32 1} 52