| ; RUN: llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | FileCheck %s | |
| ; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan-compute %s -o - -filetype=obj | spirv-val %} | |
| ; | |
| ; int foo() { return 200; } | |
| ; | |
| ; int process() { | |
| ; int a = 0; | |
| ; int b = 0; | |
| ; int c = 0; | |
| ; const int r = 20; | |
| ; const int s = 40; | |
| ; const int t = 3*r+2*s; | |
| ; | |
| ; | |
| ; //////////////////////////////////////// | |
| ; // DefaultStmt is the first statement // | |
| ; //////////////////////////////////////// | |
| ; switch(a) { | |
| ; default: | |
| ; b += 0; | |
| ; case 1: | |
| ; b += 1; | |
| ; break; | |
| ; case 2: | |
| ; b += 2; | |
| ; } | |
| ; | |
| ; | |
| ; ////////////////////////////////////////////// | |
| ; // DefaultStmt in the middle of other cases // | |
| ; ////////////////////////////////////////////// | |
| ; switch(a) { | |
| ; case 10: | |
| ; b += 1; | |
| ; default: | |
| ; b += 0; | |
| ; case 20: | |
| ; b += 2; | |
| ; break; | |
| ; } | |
| ; | |
| ; /////////////////////////////////////////////// | |
| ; // Various CaseStmt and BreakStmt topologies // | |
| ; // DefaultStmt is the last statement // | |
| ; /////////////////////////////////////////////// | |
| ; switch(int d = 5) { | |
| ; case 1: | |
| ; b += 1; | |
| ; c += foo(); | |
| ; case 2: | |
| ; b += 2; | |
| ; break; | |
| ; case 3: | |
| ; { | |
| ; b += 3; | |
| ; break; | |
| ; } | |
| ; case t: | |
| ; b += t; | |
| ; case 4: | |
| ; case 5: | |
| ; b += 5; | |
| ; break; | |
| ; case 6: { | |
| ; case 7: | |
| ; break;} | |
| ; default: | |
| ; break; | |
| ; } | |
| ; | |
| ; | |
| ; ////////////////////////// | |
| ; // No Default statement // | |
| ; ////////////////////////// | |
| ; switch(a) { | |
| ; case 100: | |
| ; b += 100; | |
| ; break; | |
| ; } | |
| ; | |
| ; | |
| ; ///////////////////////////////////////////////////////// | |
| ; // No cases. Only a default // | |
| ; // This means the default body will always be executed // | |
| ; ///////////////////////////////////////////////////////// | |
| ; switch(a) { | |
| ; default: | |
| ; b += 100; | |
| ; c += 200; | |
| ; break; | |
| ; } | |
| ; | |
| ; | |
| ; //////////////////////////////////////////////////////////// | |
| ; // Nested Switch with branching // | |
| ; // The two inner switch statements should be executed for // | |
| ; // both cases of the outer switch (case 300 and case 400) // | |
| ; //////////////////////////////////////////////////////////// | |
| ; switch(a) { | |
| ; case 300: | |
| ; b += 300; | |
| ; case 400: | |
| ; switch(c) { | |
| ; case 500: | |
| ; b += 500; | |
| ; break; | |
| ; case 600: | |
| ; switch(b) { | |
| ; default: | |
| ; a += 600; | |
| ; b += 600; | |
| ; } | |
| ; } | |
| ; } | |
| ; | |
| ; return a + b + c; | |
| ; } | |
| ; | |
| ; [numthreads(1, 1, 1)] | |
| ; void main() { | |
| ; process(); | |
| ; } | |
| ; CHECK: %[[#func_22:]] = OpFunction %[[#uint:]] DontInline %[[#]] | |
| ; CHECK: %[[#bb94:]] = OpLabel | |
| ; CHECK: OpReturnValue %[[#]] | |
| ; CHECK: OpFunctionEnd | |
| ; CHECK: %[[#func_23:]] = OpFunction %[[#uint:]] DontInline %[[#]] | |
| ; CHECK: %[[#bb95:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb96:]] None | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb97:]] %[[#bb98:]] | |
| ; CHECK: %[[#bb97:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb99:]] None | |
| ; CHECK: OpSwitch %[[#]] %[[#bb100:]] 1 %[[#bb99:]] 2 %[[#bb101:]] | |
| ; CHECK: %[[#bb98:]] = OpLabel | |
| ; CHECK: %[[#bb100:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb99:]] | |
| ; CHECK: %[[#bb101:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb99:]] | |
| ; CHECK: %[[#bb99:]] = OpLabel | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb102:]] %[[#bb96:]] | |
| ; CHECK: %[[#bb102:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb96:]] | |
| ; CHECK: %[[#bb96:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb103:]] None | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb104:]] %[[#bb105:]] | |
| ; CHECK: %[[#bb104:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb106:]] None | |
| ; CHECK: OpSwitch %[[#]] %[[#bb106:]] 10 %[[#bb107:]] 20 %[[#bb108:]] | |
| ; CHECK: %[[#bb105:]] = OpLabel | |
| ; CHECK: %[[#bb107:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb106:]] | |
| ; CHECK: %[[#bb108:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb106:]] | |
| ; CHECK: %[[#bb106:]] = OpLabel | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb109:]] %[[#bb103:]] | |
| ; CHECK: %[[#bb109:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb103:]] | |
| ; CHECK: %[[#bb103:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb110:]] | |
| ; CHECK: %[[#bb110:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb111:]] None | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb112:]] %[[#bb113:]] | |
| ; CHECK: %[[#bb112:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb114:]] None | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb115:]] %[[#bb116:]] | |
| ; CHECK: %[[#bb113:]] = OpLabel | |
| ; CHECK: %[[#bb115:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb117:]] None | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb118:]] %[[#bb119:]] | |
| ; CHECK: %[[#bb116:]] = OpLabel | |
| ; CHECK: %[[#bb118:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb120:]] None | |
| ; CHECK: OpSwitch %[[#]] %[[#bb121:]] 1 %[[#bb122:]] 2 %[[#bb120:]] 3 %[[#bb123:]] 140 %[[#bb124:]] 4 %[[#bb125:]] 5 %[[#bb126:]] 6 %[[#bb127:]] 7 %[[#bb128:]] | |
| ; CHECK: %[[#bb119:]] = OpLabel | |
| ; CHECK: %[[#bb121:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb120:]] | |
| ; CHECK: %[[#bb122:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb120:]] | |
| ; CHECK: %[[#bb123:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb120:]] | |
| ; CHECK: %[[#bb124:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb120:]] | |
| ; CHECK: %[[#bb125:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb120:]] | |
| ; CHECK: %[[#bb126:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb120:]] | |
| ; CHECK: %[[#bb127:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb120:]] | |
| ; CHECK: %[[#bb128:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb120:]] | |
| ; CHECK: %[[#bb120:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb129:]] None | |
| ; CHECK: OpSwitch %[[#]] %[[#bb130:]] 1 %[[#bb129:]] 2 %[[#bb131:]] 3 %[[#bb132:]] | |
| ; CHECK: %[[#bb130:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb129:]] | |
| ; CHECK: %[[#bb131:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb129:]] | |
| ; CHECK: %[[#bb132:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb129:]] | |
| ; CHECK: %[[#bb129:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb117:]] | |
| ; CHECK: %[[#bb117:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb133:]] None | |
| ; CHECK: OpSwitch %[[#]] %[[#bb134:]] 1 %[[#bb133:]] 2 %[[#bb135:]] | |
| ; CHECK: %[[#bb134:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb133:]] | |
| ; CHECK: %[[#bb135:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb133:]] | |
| ; CHECK: %[[#bb133:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb114:]] | |
| ; CHECK: %[[#bb114:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb111:]] | |
| ; CHECK: %[[#bb111:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb136:]] None | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb137:]] %[[#bb136:]] | |
| ; CHECK: %[[#bb137:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb136:]] | |
| ; CHECK: %[[#bb136:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb138:]] | |
| ; CHECK: %[[#bb138:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb139:]] | |
| ; CHECK: %[[#bb139:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb140:]] None | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb141:]] %[[#bb142:]] | |
| ; CHECK: %[[#bb141:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb143:]] None | |
| ; CHECK: OpSwitch %[[#]] %[[#bb143:]] 300 %[[#bb144:]] 400 %[[#bb145:]] | |
| ; CHECK: %[[#bb142:]] = OpLabel | |
| ; CHECK: %[[#bb144:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb143:]] | |
| ; CHECK: %[[#bb145:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb143:]] | |
| ; CHECK: %[[#bb143:]] = OpLabel | |
| ; CHECK: OpBranchConditional %[[#]] %[[#bb140:]] %[[#bb146:]] | |
| ; CHECK: %[[#bb146:]] = OpLabel | |
| ; CHECK: OpSelectionMerge %[[#bb147:]] None | |
| ; CHECK: OpSwitch %[[#]] %[[#bb147:]] 500 %[[#bb148:]] 600 %[[#bb149:]] | |
| ; CHECK: %[[#bb148:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb147:]] | |
| ; CHECK: %[[#bb149:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb150:]] | |
| ; CHECK: %[[#bb150:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb147:]] | |
| ; CHECK: %[[#bb147:]] = OpLabel | |
| ; CHECK: OpBranch %[[#bb140:]] | |
| ; CHECK: %[[#bb140:]] = OpLabel | |
| ; CHECK: OpReturnValue %[[#]] | |
| ; CHECK: OpFunctionEnd | |
| ; CHECK: %[[#func_90:]] = OpFunction %[[#void:]] DontInline %[[#]] | |
| ; CHECK: %[[#bb151:]] = OpLabel | |
| ; CHECK: OpReturn | |
| ; CHECK: OpFunctionEnd | |
| ; CHECK: %[[#func_92:]] = OpFunction %[[#void:]] None %[[#]] | |
| ; CHECK: %[[#bb152:]] = OpLabel | |
| ; CHECK: OpReturn | |
| ; CHECK: OpFunctionEnd | |
| 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 norecurse nounwind optnone | |
| define spir_func noundef i32 @_Z3foov() #0 { | |
| entry: | |
| %0 = call token @llvm.experimental.convergence.entry() | |
| ret i32 200 | |
| } | |
| ; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none) | |
| declare token @llvm.experimental.convergence.entry() #1 | |
| ; Function Attrs: convergent noinline norecurse nounwind optnone | |
| define spir_func noundef i32 @_Z7processv() #0 { | |
| entry: | |
| %0 = call token @llvm.experimental.convergence.entry() | |
| %a = alloca i32, align 4 | |
| %b = alloca i32, align 4 | |
| %c = alloca i32, align 4 | |
| %r = alloca i32, align 4 | |
| %s = alloca i32, align 4 | |
| %t = alloca i32, align 4 | |
| %d = alloca i32, align 4 | |
| store i32 0, ptr %a, align 4 | |
| store i32 0, ptr %b, align 4 | |
| store i32 0, ptr %c, align 4 | |
| store i32 20, ptr %r, align 4 | |
| store i32 40, ptr %s, align 4 | |
| store i32 140, ptr %t, align 4 | |
| %1 = load i32, ptr %a, align 4 | |
| switch i32 %1, label %sw.default [ | |
| i32 1, label %sw.bb | |
| i32 2, label %sw.bb2 | |
| ] | |
| sw.default: ; preds = %entry | |
| %2 = load i32, ptr %b, align 4 | |
| %add = add nsw i32 %2, 0 | |
| store i32 %add, ptr %b, align 4 | |
| br label %sw.bb | |
| sw.bb: ; preds = %entry, %sw.default | |
| %3 = load i32, ptr %b, align 4 | |
| %add1 = add nsw i32 %3, 1 | |
| store i32 %add1, ptr %b, align 4 | |
| br label %sw.epilog | |
| sw.bb2: ; preds = %entry | |
| %4 = load i32, ptr %b, align 4 | |
| %add3 = add nsw i32 %4, 2 | |
| store i32 %add3, ptr %b, align 4 | |
| br label %sw.epilog | |
| sw.epilog: ; preds = %sw.bb2, %sw.bb | |
| %5 = load i32, ptr %a, align 4 | |
| switch i32 %5, label %sw.default6 [ | |
| i32 10, label %sw.bb4 | |
| i32 20, label %sw.bb8 | |
| ] | |
| sw.bb4: ; preds = %sw.epilog | |
| %6 = load i32, ptr %b, align 4 | |
| %add5 = add nsw i32 %6, 1 | |
| store i32 %add5, ptr %b, align 4 | |
| br label %sw.default6 | |
| sw.default6: ; preds = %sw.epilog, %sw.bb4 | |
| %7 = load i32, ptr %b, align 4 | |
| %add7 = add nsw i32 %7, 0 | |
| store i32 %add7, ptr %b, align 4 | |
| br label %sw.bb8 | |
| sw.bb8: ; preds = %sw.epilog, %sw.default6 | |
| %8 = load i32, ptr %b, align 4 | |
| %add9 = add nsw i32 %8, 2 | |
| store i32 %add9, ptr %b, align 4 | |
| br label %sw.epilog10 | |
| sw.epilog10: ; preds = %sw.bb8 | |
| store i32 5, ptr %d, align 4 | |
| %9 = load i32, ptr %d, align 4 | |
| switch i32 %9, label %sw.default25 [ | |
| i32 1, label %sw.bb11 | |
| i32 2, label %sw.bb15 | |
| i32 3, label %sw.bb17 | |
| i32 140, label %sw.bb19 | |
| i32 4, label %sw.bb21 | |
| i32 5, label %sw.bb21 | |
| i32 6, label %sw.bb23 | |
| i32 7, label %sw.bb24 | |
| ] | |
| sw.bb11: ; preds = %sw.epilog10 | |
| %10 = load i32, ptr %b, align 4 | |
| %add12 = add nsw i32 %10, 1 | |
| store i32 %add12, ptr %b, align 4 | |
| %call13 = call spir_func noundef i32 @_Z3foov() #3 [ "convergencectrl"(token %0) ] | |
| %11 = load i32, ptr %c, align 4 | |
| %add14 = add nsw i32 %11, %call13 | |
| store i32 %add14, ptr %c, align 4 | |
| br label %sw.bb15 | |
| sw.bb15: ; preds = %sw.epilog10, %sw.bb11 | |
| %12 = load i32, ptr %b, align 4 | |
| %add16 = add nsw i32 %12, 2 | |
| store i32 %add16, ptr %b, align 4 | |
| br label %sw.epilog26 | |
| sw.bb17: ; preds = %sw.epilog10 | |
| %13 = load i32, ptr %b, align 4 | |
| %add18 = add nsw i32 %13, 3 | |
| store i32 %add18, ptr %b, align 4 | |
| br label %sw.epilog26 | |
| sw.bb19: ; preds = %sw.epilog10 | |
| %14 = load i32, ptr %b, align 4 | |
| %add20 = add nsw i32 %14, 140 | |
| store i32 %add20, ptr %b, align 4 | |
| br label %sw.bb21 | |
| sw.bb21: ; preds = %sw.epilog10, %sw.epilog10, %sw.bb19 | |
| %15 = load i32, ptr %b, align 4 | |
| %add22 = add nsw i32 %15, 5 | |
| store i32 %add22, ptr %b, align 4 | |
| br label %sw.epilog26 | |
| sw.bb23: ; preds = %sw.epilog10 | |
| br label %sw.bb24 | |
| sw.bb24: ; preds = %sw.epilog10, %sw.bb23 | |
| br label %sw.epilog26 | |
| sw.default25: ; preds = %sw.epilog10 | |
| br label %sw.epilog26 | |
| sw.epilog26: ; preds = %sw.default25, %sw.bb24, %sw.bb21, %sw.bb17, %sw.bb15 | |
| %16 = load i32, ptr %a, align 4 | |
| switch i32 %16, label %sw.epilog29 [ | |
| i32 100, label %sw.bb27 | |
| ] | |
| sw.bb27: ; preds = %sw.epilog26 | |
| %17 = load i32, ptr %b, align 4 | |
| %add28 = add nsw i32 %17, 100 | |
| store i32 %add28, ptr %b, align 4 | |
| br label %sw.epilog29 | |
| sw.epilog29: ; preds = %sw.epilog26, %sw.bb27 | |
| %18 = load i32, ptr %a, align 4 | |
| switch i32 %18, label %sw.default30 [ | |
| ] | |
| sw.default30: ; preds = %sw.epilog29 | |
| %19 = load i32, ptr %b, align 4 | |
| %add31 = add nsw i32 %19, 100 | |
| store i32 %add31, ptr %b, align 4 | |
| %20 = load i32, ptr %c, align 4 | |
| %add32 = add nsw i32 %20, 200 | |
| store i32 %add32, ptr %c, align 4 | |
| br label %sw.epilog33 | |
| sw.epilog33: ; preds = %sw.default30 | |
| %21 = load i32, ptr %a, align 4 | |
| switch i32 %21, label %sw.epilog45 [ | |
| i32 300, label %sw.bb34 | |
| i32 400, label %sw.bb36 | |
| ] | |
| sw.bb34: ; preds = %sw.epilog33 | |
| %22 = load i32, ptr %b, align 4 | |
| %add35 = add nsw i32 %22, 300 | |
| store i32 %add35, ptr %b, align 4 | |
| br label %sw.bb36 | |
| sw.bb36: ; preds = %sw.epilog33, %sw.bb34 | |
| %23 = load i32, ptr %c, align 4 | |
| switch i32 %23, label %sw.epilog44 [ | |
| i32 500, label %sw.bb37 | |
| i32 600, label %sw.bb39 | |
| ] | |
| sw.bb37: ; preds = %sw.bb36 | |
| %24 = load i32, ptr %b, align 4 | |
| %add38 = add nsw i32 %24, 500 | |
| store i32 %add38, ptr %b, align 4 | |
| br label %sw.epilog44 | |
| sw.bb39: ; preds = %sw.bb36 | |
| %25 = load i32, ptr %b, align 4 | |
| switch i32 %25, label %sw.default40 [ | |
| ] | |
| sw.default40: ; preds = %sw.bb39 | |
| %26 = load i32, ptr %a, align 4 | |
| %add41 = add nsw i32 %26, 600 | |
| store i32 %add41, ptr %a, align 4 | |
| %27 = load i32, ptr %b, align 4 | |
| %add42 = add nsw i32 %27, 600 | |
| store i32 %add42, ptr %b, align 4 | |
| br label %sw.epilog43 | |
| sw.epilog43: ; preds = %sw.default40 | |
| br label %sw.epilog44 | |
| sw.epilog44: ; preds = %sw.epilog43, %sw.bb36, %sw.bb37 | |
| br label %sw.epilog45 | |
| sw.epilog45: ; preds = %sw.epilog44, %sw.epilog33 | |
| %28 = load i32, ptr %a, align 4 | |
| %29 = load i32, ptr %b, align 4 | |
| %add46 = add nsw i32 %28, %29 | |
| %30 = load i32, ptr %c, align 4 | |
| %add47 = add nsw i32 %add46, %30 | |
| ret i32 %add47 | |
| } | |
| ; Function Attrs: convergent noinline norecurse nounwind optnone | |
| define internal spir_func void @main() #0 { | |
| entry: | |
| %0 = call token @llvm.experimental.convergence.entry() | |
| %call1 = call spir_func noundef i32 @_Z7processv() #3 [ "convergencectrl"(token %0) ] | |
| ret void | |
| } | |
| ; Function Attrs: convergent norecurse | |
| define void @main.1() #2 { | |
| entry: | |
| call void @main() | |
| ret void | |
| } | |
| attributes #0 = { convergent noinline norecurse 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 norecurse "frame-pointer"="all" "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" } | |
| attributes #3 = { 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} | |