; RUN: %if spirv-tools %{ llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | spirv-as --preserve-numeric-ids - -o - | spirv-val %} ; ; Source HLSL: ; ; int process() { ; int val=0, i=0, j=0, k=0; ; ; do { ; val = val + i; ; ; do { ; do { ; ++k; ; } while (k < 30); ; ; ++j; ; } while (j < 20); ; ; ++i; ; ; } while (i < 10); ; ; return val + i + j + k; ; } ; ; [numthreads(1, 1, 1)] ; void main() { ; process(); ; } 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-vulkan1.3-compute" ; Function Attrs: convergent noinline nounwind optnone define spir_func noundef i32 @_Z7processv() #0 { entry: %0 = call token @llvm.experimental.convergence.entry() %val = alloca i32, align 4 %i = alloca i32, align 4 %j = alloca i32, align 4 %k = alloca i32, align 4 store i32 0, ptr %val, align 4 store i32 0, ptr %i, align 4 store i32 0, ptr %j, align 4 store i32 0, ptr %k, align 4 br label %do.body do.body: ; preds = %do.cond8, %entry %1 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ] %2 = load i32, ptr %val, align 4 %3 = load i32, ptr %i, align 4 %add = add nsw i32 %2, %3 store i32 %add, ptr %val, align 4 br label %do.body1 do.body1: ; preds = %do.cond4, %do.body %4 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %1) ] br label %do.body2 do.body2: ; preds = %do.cond, %do.body1 %5 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %4) ] %6 = load i32, ptr %k, align 4 %inc = add nsw i32 %6, 1 store i32 %inc, ptr %k, align 4 br label %do.cond do.cond: ; preds = %do.body2 %7 = load i32, ptr %k, align 4 %cmp = icmp slt i32 %7, 30 br i1 %cmp, label %do.body2, label %do.end do.end: ; preds = %do.cond %8 = load i32, ptr %j, align 4 %inc3 = add nsw i32 %8, 1 store i32 %inc3, ptr %j, align 4 br label %do.cond4 do.cond4: ; preds = %do.end %9 = load i32, ptr %j, align 4 %cmp5 = icmp slt i32 %9, 20 br i1 %cmp5, label %do.body1, label %do.end6 do.end6: ; preds = %do.cond4 %10 = load i32, ptr %i, align 4 %inc7 = add nsw i32 %10, 1 store i32 %inc7, ptr %i, align 4 br label %do.cond8 do.cond8: ; preds = %do.end6 %11 = load i32, ptr %i, align 4 %cmp9 = icmp slt i32 %11, 10 br i1 %cmp9, label %do.body, label %do.end10 do.end10: ; preds = %do.cond8 %12 = load i32, ptr %val, align 4 %13 = load i32, ptr %i, align 4 %add11 = add nsw i32 %12, %13 %14 = load i32, ptr %j, align 4 %add12 = add nsw i32 %add11, %14 %15 = load i32, ptr %k, align 4 %add13 = add nsw i32 %add12, %15 ret i32 %add13 } ; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none) declare token @llvm.experimental.convergence.entry() #1 ; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none) declare token @llvm.experimental.convergence.loop() #1 ; Function Attrs: convergent noinline norecurse nounwind optnone define internal spir_func void @main() #2 { entry: %0 = call token @llvm.experimental.convergence.entry() %call1 = call spir_func noundef i32 @_Z7processv() #4 [ "convergencectrl"(token %0) ] ret void } ; Function Attrs: convergent norecurse define void @main.1() #3 { entry: call void @main() ret void } attributes #0 = { convergent noinline nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } attributes #1 = { convergent nocallback nofree nosync nounwind willreturn memory(none) } attributes #2 = { convergent noinline norecurse nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } attributes #3 = { convergent norecurse "frame-pointer"="all" "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } attributes #4 = { convergent } !llvm.module.flags = !{!0, !1, !2} !0 = !{i32 1, !"wchar_size", i32 4} !1 = !{i32 4, !"dx.disable_optimizations", i32 1} !2 = !{i32 7, !"frame-pointer", i32 2}