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1; RUN: llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | FileCheck %s2; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan-compute %s -o - -filetype=obj | spirv-val %}3 4;5; int process() {6; int val = 0;7;8; for (int i = 0; i < 10; ++i) {9; val = val + i;10;11; for (int j = 0; j < 2; ++j) {12; for (int k = 0; k < 2; ++k) {13; val = val + k;14; }15;16; val = val * 2;17;18; }19; }20; return val;21; }22;23; [numthreads(1, 1, 1)]24; void main() {25; process();26; }27 28; CHECK: %[[#func_11:]] = OpFunction %[[#uint:]] DontInline %[[#]]29; CHECK: %[[#bb41:]] = OpLabel30; CHECK: OpBranch %[[#bb42:]]31; CHECK: %[[#bb42]] = OpLabel32; CHECK: OpLoopMerge %[[#bb43:]] %[[#bb44:]] None33; CHECK: OpBranchConditional %[[#]] %[[#bb45:]] %[[#bb43]]34 ; CHECK: %[[#bb43]] = OpLabel35 ; CHECK: OpReturnValue %[[#]]36 37 ; CHECK: %[[#bb45]] = OpLabel38 ; CHECK: OpBranch %[[#bb46:]]39 ; CHECK: %[[#bb46]] = OpLabel40 ; CHECK: OpLoopMerge %[[#bb47:]] %[[#bb48:]] None41 ; CHECK: OpBranchConditional %[[#]] %[[#bb49:]] %[[#bb47]]42 ; CHECK: %[[#bb47]] = OpLabel43 ; CHECK: OpBranch %[[#bb44]]44 ; CHECK: %[[#bb44]] = OpLabel45 ; CHECK: OpBranch %[[#bb42]]46 47 ; CHECK: %[[#bb49]] = OpLabel48 ; CHECK: OpBranch %[[#bb50:]]49 ; CHECK: %[[#bb50]] = OpLabel50 ; CHECK: OpLoopMerge %[[#bb51:]] %[[#bb52:]] None51 ; CHECK: OpBranchConditional %[[#]] %[[#bb53:]] %[[#bb51]]52 ; CHECK: %[[#bb51]] = OpLabel53 ; CHECK: OpBranch %[[#bb48]]54 ; CHECK: %[[#bb48]] = OpLabel55 ; CHECK: OpBranch %[[#bb46]]56 57 ; CHECK: %[[#bb53]] = OpLabel58 ; CHECK: OpBranch %[[#bb52]]59 ; CHECK: %[[#bb52]] = OpLabel60 ; CHECK: OpBranch %[[#bb50]]61; CHECK: OpFunctionEnd62 63; CHECK: %[[#func_37:]] = OpFunction %[[#void:]] DontInline %[[#]]64; CHECK: %[[#bb54:]] = OpLabel65; CHECK: OpReturn66; CHECK: OpFunctionEnd67 68; CHECK: %[[#func_39:]] = OpFunction %[[#void:]] None %[[#]]69; CHECK: %[[#bb55:]] = OpLabel70; CHECK: OpReturn71; CHECK: OpFunctionEnd72 73 74 75target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1"76target triple = "spirv-unknown-vulkan1.3-compute"77 78; Function Attrs: convergent noinline norecurse nounwind optnone79define spir_func noundef i32 @_Z7processv() #0 {80entry:81 %0 = call token @llvm.experimental.convergence.entry()82 %val = alloca i32, align 483 %i = alloca i32, align 484 %j = alloca i32, align 485 %k = alloca i32, align 486 store i32 0, ptr %val, align 487 store i32 0, ptr %i, align 488 br label %for.cond89 90for.cond: ; preds = %for.inc11, %entry91 %1 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ]92 %2 = load i32, ptr %i, align 493 %cmp = icmp slt i32 %2, 1094 br i1 %cmp, label %for.body, label %for.end1395 96for.body: ; preds = %for.cond97 %3 = load i32, ptr %val, align 498 %4 = load i32, ptr %i, align 499 %add = add nsw i32 %3, %4100 store i32 %add, ptr %val, align 4101 store i32 0, ptr %j, align 4102 br label %for.cond1103 104for.cond1: ; preds = %for.inc8, %for.body105 %5 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %1) ]106 %6 = load i32, ptr %j, align 4107 %cmp2 = icmp slt i32 %6, 2108 br i1 %cmp2, label %for.body3, label %for.end10109 110for.body3: ; preds = %for.cond1111 store i32 0, ptr %k, align 4112 br label %for.cond4113 114for.cond4: ; preds = %for.inc, %for.body3115 %7 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %5) ]116 %8 = load i32, ptr %k, align 4117 %cmp5 = icmp slt i32 %8, 2118 br i1 %cmp5, label %for.body6, label %for.end119 120for.body6: ; preds = %for.cond4121 %9 = load i32, ptr %val, align 4122 %10 = load i32, ptr %k, align 4123 %add7 = add nsw i32 %9, %10124 store i32 %add7, ptr %val, align 4125 br label %for.inc126 127for.inc: ; preds = %for.body6128 %11 = load i32, ptr %k, align 4129 %inc = add nsw i32 %11, 1130 store i32 %inc, ptr %k, align 4131 br label %for.cond4132 133for.end: ; preds = %for.cond4134 %12 = load i32, ptr %val, align 4135 %mul = mul nsw i32 %12, 2136 store i32 %mul, ptr %val, align 4137 br label %for.inc8138 139for.inc8: ; preds = %for.end140 %13 = load i32, ptr %j, align 4141 %inc9 = add nsw i32 %13, 1142 store i32 %inc9, ptr %j, align 4143 br label %for.cond1144 145for.end10: ; preds = %for.cond1146 br label %for.inc11147 148for.inc11: ; preds = %for.end10149 %14 = load i32, ptr %i, align 4150 %inc12 = add nsw i32 %14, 1151 store i32 %inc12, ptr %i, align 4152 br label %for.cond153 154for.end13: ; preds = %for.cond155 %15 = load i32, ptr %val, align 4156 ret i32 %15157}158 159; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none)160declare token @llvm.experimental.convergence.entry() #1161 162; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none)163declare token @llvm.experimental.convergence.loop() #1164 165; Function Attrs: convergent noinline norecurse nounwind optnone166define internal spir_func void @main() #0 {167entry:168 %0 = call token @llvm.experimental.convergence.entry()169 %call1 = call spir_func noundef i32 @_Z7processv() #3 [ "convergencectrl"(token %0) ]170 ret void171}172 173; Function Attrs: convergent norecurse174define void @main.1() #2 {175entry:176 call void @main()177 ret void178}179 180attributes #0 = { convergent noinline norecurse nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }181attributes #1 = { convergent nocallback nofree nosync nounwind willreturn memory(none) }182attributes #2 = { convergent norecurse "frame-pointer"="all" "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }183attributes #3 = { convergent }184 185!llvm.module.flags = !{!0, !1, !2}186 187 188!0 = !{i32 1, !"wchar_size", i32 4}189!1 = !{i32 4, !"dx.disable_optimizations", i32 1}190!2 = !{i32 7, !"frame-pointer", i32 2}191 192 193