1; RUN: %if spirv-tools %{ llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | spirv-as --preserve-numeric-ids - -o - | spirv-val %} 2; 3; Source HLSL: 4; 5; int process() { 6; int val=0, i=0, j=0, k=0; 7; 8; do { 9; val = val + i; 10; 11; do { 12; do { 13; ++k; 14; } while (k < 30); 15; 16; ++j; 17; } while (j < 20); 18; 19; ++i; 20; 21; } while (i < 10); 22; 23; return val + i + j + k; 24; } 25; 26; [numthreads(1, 1, 1)] 27; void main() { 28; process(); 29; } 30 31target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1" 32target triple = "spirv-unknown-vulkan1.3-compute" 33 34; Function Attrs: convergent noinline nounwind optnone 35define spir_func noundef i32 @_Z7processv() #0 { 36entry: 37 %0 = call token @llvm.experimental.convergence.entry() 38 %val = alloca i32, align 4 39 %i = alloca i32, align 4 40 %j = alloca i32, align 4 41 %k = alloca i32, align 4 42 store i32 0, ptr %val, align 4 43 store i32 0, ptr %i, align 4 44 store i32 0, ptr %j, align 4 45 store i32 0, ptr %k, align 4 46 br label %do.body 47 48do.body: ; preds = %do.cond8, %entry 49 %1 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ] 50 %2 = load i32, ptr %val, align 4 51 %3 = load i32, ptr %i, align 4 52 %add = add nsw i32 %2, %3 53 store i32 %add, ptr %val, align 4 54 br label %do.body1 55 56do.body1: ; preds = %do.cond4, %do.body 57 %4 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %1) ] 58 br label %do.body2 59 60do.body2: ; preds = %do.cond, %do.body1 61 %5 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %4) ] 62 %6 = load i32, ptr %k, align 4 63 %inc = add nsw i32 %6, 1 64 store i32 %inc, ptr %k, align 4 65 br label %do.cond 66 67do.cond: ; preds = %do.body2 68 %7 = load i32, ptr %k, align 4 69 %cmp = icmp slt i32 %7, 30 70 br i1 %cmp, label %do.body2, label %do.end 71 72do.end: ; preds = %do.cond 73 %8 = load i32, ptr %j, align 4 74 %inc3 = add nsw i32 %8, 1 75 store i32 %inc3, ptr %j, align 4 76 br label %do.cond4 77 78do.cond4: ; preds = %do.end 79 %9 = load i32, ptr %j, align 4 80 %cmp5 = icmp slt i32 %9, 20 81 br i1 %cmp5, label %do.body1, label %do.end6 82 83do.end6: ; preds = %do.cond4 84 %10 = load i32, ptr %i, align 4 85 %inc7 = add nsw i32 %10, 1 86 store i32 %inc7, ptr %i, align 4 87 br label %do.cond8 88 89do.cond8: ; preds = %do.end6 90 %11 = load i32, ptr %i, align 4 91 %cmp9 = icmp slt i32 %11, 10 92 br i1 %cmp9, label %do.body, label %do.end10 93 94do.end10: ; preds = %do.cond8 95 %12 = load i32, ptr %val, align 4 96 %13 = load i32, ptr %i, align 4 97 %add11 = add nsw i32 %12, %13 98 %14 = load i32, ptr %j, align 4 99 %add12 = add nsw i32 %add11, %14 100 %15 = load i32, ptr %k, align 4 101 %add13 = add nsw i32 %add12, %15 102 ret i32 %add13 103} 104 105; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none) 106declare token @llvm.experimental.convergence.entry() #1 107 108; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none) 109declare token @llvm.experimental.convergence.loop() #1 110 111; Function Attrs: convergent noinline norecurse nounwind optnone 112define internal spir_func void @main() #2 { 113entry: 114 %0 = call token @llvm.experimental.convergence.entry() 115 %call1 = call spir_func noundef i32 @_Z7processv() #4 [ "convergencectrl"(token %0) ] 116 ret void 117} 118 119; Function Attrs: convergent norecurse 120define void @main.1() #3 { 121entry: 122 call void @main() 123 ret void 124} 125 126attributes #0 = { convergent noinline nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } 127attributes #1 = { convergent nocallback nofree nosync nounwind willreturn memory(none) } 128attributes #2 = { convergent noinline norecurse nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } 129attributes #3 = { convergent norecurse "frame-pointer"="all" "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } 130attributes #4 = { convergent } 131 132!llvm.module.flags = !{!0, !1, !2} 133 134!0 = !{i32 1, !"wchar_size", i32 4} 135!1 = !{i32 4, !"dx.disable_optimizations", i32 1} 136!2 = !{i32 7, !"frame-pointer", i32 2} 137 138