1; RUN: llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | FileCheck %s 2; 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; if (i < 5) { 10; continue; 11; } 12; val = i; 13; 14; { 15; continue; 16; } 17; val++; // No SPIR-V should be emitted for this statement. 18; continue; // No SPIR-V should be emitted for this statement. 19; while(true); // No SPIR-V should be emitted for this statement. 20; } 21; 22; ////////////////////////////////////////////////////////////////////////////////////// 23; // Nested for loops with continue statements // 24; // Each continue statement should branch to the corresponding loop's continue block // 25; ////////////////////////////////////////////////////////////////////////////////////// 26; 27; for (int j = 0; j < 10; ++j) { 28; val = j+5; 29; 30; for ( ; val < 20; ++val) { 31; int k = val + j; 32; continue; 33; k++; // No SPIR-V should be emitted for this statement. 34; } 35; 36; val -= 1; 37; continue; 38; continue; // No SPIR-V should be emitted for this statement. 39; val = val*10; // No SPIR-V should be emitted for this statement. 40; } 41; 42; return val; 43; } 44; 45; [numthreads(1, 1, 1)] 46; void main() { 47; process(); 48; } 49 50; CHECK: %[[#func_12:]] = OpFunction %[[#uint:]] DontInline %[[#]] 51; CHECK: %[[#bb44:]] = OpLabel 52; CHECK: OpBranch %[[#bb45:]] 53; CHECK: %[[#bb45]] = OpLabel 54; CHECK: OpLoopMerge %[[#bb46:]] %[[#bb47:]] None 55; CHECK: OpBranchConditional %[[#]] %[[#bb48:]] %[[#bb46:]] 56 ; CHECK: %[[#bb46]] = OpLabel 57 ; CHECK: OpBranch %[[#bb51:]] 58 ; CHECK: %[[#bb51]] = OpLabel 59 ; CHECK: OpLoopMerge %[[#bb52:]] %[[#bb53:]] None 60 ; CHECK: OpBranchConditional %[[#]] %[[#bb54:]] %[[#bb52]] 61 ; CHECK: %[[#bb52]] = OpLabel 62 ; CHECK: OpReturnValue %[[#]] 63 64 ; CHECK: %[[#bb54]] = OpLabel 65 ; CHECK: OpBranch %[[#bb55:]] 66 ; CHECK: %[[#bb55]] = OpLabel 67 ; CHECK: OpLoopMerge %[[#bb56:]] %[[#bb57:]] None 68 ; CHECK: OpBranchConditional %[[#]] %[[#bb58:]] %[[#bb56]] 69 ; CHECK: %[[#bb56]] = OpLabel 70 ; CHECK: OpBranch %[[#bb53]] 71 ; CHECK: %[[#bb53]] = OpLabel 72 ; CHECK: OpBranch %[[#bb51]] 73 74 ; CHECK: %[[#bb58]] = OpLabel 75 ; CHECK: OpBranch %[[#bb57]] 76 ; CHECK: %[[#bb57]] = OpLabel 77 ; CHECK: OpBranch %[[#bb55]] 78 ; CHECK: %[[#bb48]] = OpLabel 79 ; CHECK: OpSelectionMerge %[[#bb49:]] None 80 ; CHECK: OpBranchConditional %[[#]] %[[#bb49]] %[[#bb50:]] 81 ; CHECK: %[[#bb50]] = OpLabel 82 ; CHECK: OpBranch %[[#bb49]] 83 84 ; CHECK: %[[#bb49]] = OpLabel 85 ; CHECK: OpBranch %[[#bb47]] 86 87; CHECK: %[[#bb47]] = OpLabel 88; CHECK: OpBranch %[[#bb45]] 89; CHECK: OpFunctionEnd 90 91; CHECK: %[[#func_40:]] = OpFunction %[[#void:]] DontInline %[[#]] 92; CHECK: %[[#bb59:]] = OpLabel 93; CHECK: OpReturn 94; CHECK: OpFunctionEnd 95 96; CHECK: %[[#func_42:]] = OpFunction %[[#void:]] None %[[#]] 97; CHECK: %[[#bb60:]] = OpLabel 98; CHECK: OpReturn 99; CHECK: OpFunctionEnd 100 101target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1" 102target triple = "spirv-unknown-vulkan1.3-compute" 103 104; Function Attrs: convergent noinline norecurse nounwind optnone 105define spir_func noundef i32 @_Z7processv() #0 { 106entry: 107 %0 = call token @llvm.experimental.convergence.entry() 108 %val = alloca i32, align 4 109 %i = alloca i32, align 4 110 %j = alloca i32, align 4 111 %k = alloca i32, align 4 112 store i32 0, ptr %val, align 4 113 store i32 0, ptr %i, align 4 114 br label %for.cond 115 116for.cond: ; preds = %for.inc, %entry 117 %1 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ] 118 %2 = load i32, ptr %i, align 4 119 %cmp = icmp slt i32 %2, 10 120 br i1 %cmp, label %for.body, label %for.end 121 122for.body: ; preds = %for.cond 123 %3 = load i32, ptr %i, align 4 124 %cmp1 = icmp slt i32 %3, 5 125 br i1 %cmp1, label %if.then, label %if.end 126 127if.then: ; preds = %for.body 128 br label %for.inc 129 130if.end: ; preds = %for.body 131 %4 = load i32, ptr %i, align 4 132 store i32 %4, ptr %val, align 4 133 br label %for.inc 134 135for.inc: ; preds = %if.end, %if.then 136 %5 = load i32, ptr %i, align 4 137 %inc = add nsw i32 %5, 1 138 store i32 %inc, ptr %i, align 4 139 br label %for.cond 140 141for.end: ; preds = %for.cond 142 store i32 0, ptr %j, align 4 143 br label %for.cond2 144 145for.cond2: ; preds = %for.inc12, %for.end 146 %6 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ] 147 %7 = load i32, ptr %j, align 4 148 %cmp3 = icmp slt i32 %7, 10 149 br i1 %cmp3, label %for.body4, label %for.end14 150 151for.body4: ; preds = %for.cond2 152 %8 = load i32, ptr %j, align 4 153 %add = add nsw i32 %8, 5 154 store i32 %add, ptr %val, align 4 155 br label %for.cond5 156 157for.cond5: ; preds = %for.inc9, %for.body4 158 %9 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %6) ] 159 %10 = load i32, ptr %val, align 4 160 %cmp6 = icmp slt i32 %10, 20 161 br i1 %cmp6, label %for.body7, label %for.end11 162 163for.body7: ; preds = %for.cond5 164 %11 = load i32, ptr %val, align 4 165 %12 = load i32, ptr %j, align 4 166 %add8 = add nsw i32 %11, %12 167 store i32 %add8, ptr %k, align 4 168 br label %for.inc9 169 170for.inc9: ; preds = %for.body7 171 %13 = load i32, ptr %val, align 4 172 %inc10 = add nsw i32 %13, 1 173 store i32 %inc10, ptr %val, align 4 174 br label %for.cond5 175 176for.end11: ; preds = %for.cond5 177 %14 = load i32, ptr %val, align 4 178 %sub = sub nsw i32 %14, 1 179 store i32 %sub, ptr %val, align 4 180 br label %for.inc12 181 182for.inc12: ; preds = %for.end11 183 %15 = load i32, ptr %j, align 4 184 %inc13 = add nsw i32 %15, 1 185 store i32 %inc13, ptr %j, align 4 186 br label %for.cond2 187 188for.end14: ; preds = %for.cond2 189 %16 = load i32, ptr %val, align 4 190 ret i32 %16 191} 192 193; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none) 194declare token @llvm.experimental.convergence.entry() #1 195 196; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none) 197declare token @llvm.experimental.convergence.loop() #1 198 199; Function Attrs: convergent noinline norecurse nounwind optnone 200define internal spir_func void @main() #0 { 201entry: 202 %0 = call token @llvm.experimental.convergence.entry() 203 %call1 = call spir_func noundef i32 @_Z7processv() #3 [ "convergencectrl"(token %0) ] 204 ret void 205} 206 207; Function Attrs: convergent norecurse 208define void @main.1() #2 { 209entry: 210 call void @main() 211 ret void 212} 213 214attributes #0 = { convergent noinline norecurse nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } 215attributes #1 = { convergent nocallback nofree nosync nounwind willreturn memory(none) } 216attributes #2 = { convergent norecurse "frame-pointer"="all" "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } 217attributes #3 = { convergent } 218 219!llvm.module.flags = !{!0, !1, !2} 220 221 222!0 = !{i32 1, !"wchar_size", i32 4} 223!1 = !{i32 4, !"dx.disable_optimizations", i32 1} 224!2 = !{i32 7, !"frame-pointer", i32 2} 225 226 227