; 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 true; }
;
; [numthreads(1, 1, 1)]
; void main() {
; int val = 0;
; int i = 0;
;
; while (i < 10) {
; val = i;
; if (val > 5) {
; continue;
; }
;
; if (val > 6) {
; {{continue;}}
; val++; // No SPIR-V should be emitted for this statement.
; continue; // No SPIR-V should be emitted for this statement.
; while(true); // No SPIR-V should be emitted for this statement.
; --i; // No SPIR-V should be emitted for this statement.
; }
;
; }
;
; //////////////////////////////////////////////////////////////////////////////////////
; // Nested while loops with continue statements //
; // Each continue statement should branch to the corresponding loop's continue block //
; //////////////////////////////////////////////////////////////////////////////////////
;
; while (true) {
; i++;
;
; while(i<20) {
; val = i;
; continue;
; }
; --i;
; continue;
; continue; // No SPIR-V should be emitted for this statement.
;
; }
; }
; CHECK: %[[#func_15:]] = OpFunction %[[#uint:]] DontInline %[[#]]
; CHECK: %[[#bb35:]] = OpLabel
; CHECK: OpReturnValue %[[#]]
; CHECK: OpFunctionEnd
; CHECK: %[[#func_16:]] = OpFunction %[[#void:]] DontInline %[[#]]
; CHECK: %[[#bb36:]] = OpLabel
; CHECK: OpBranch %[[#bb37:]]
; CHECK: %[[#bb37:]] = OpLabel
; CHECK: OpLoopMerge %[[#bb38:]] %[[#bb39:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb40:]] %[[#bb38:]]
; CHECK: %[[#bb40:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb41:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb41:]] %[[#bb42:]]
; CHECK: %[[#bb42:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb43:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb43:]] %[[#bb44:]]
; CHECK: %[[#bb44:]] = OpLabel
; CHECK: OpBranch %[[#bb43:]]
; CHECK: %[[#bb43:]] = OpLabel
; CHECK: OpBranch %[[#bb41:]]
; CHECK: %[[#bb41:]] = OpLabel
; CHECK: OpBranch %[[#bb39:]]
; CHECK: %[[#bb39:]] = OpLabel
; CHECK: OpBranch %[[#bb37:]]
; CHECK: %[[#bb38:]] = OpLabel
; CHECK: OpBranch %[[#bb45:]]
; CHECK: %[[#bb45:]] = OpLabel
; CHECK: OpLoopMerge %[[#bb46:]] %[[#bb47:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb46:]] %[[#bb48:]]
; CHECK: %[[#bb48:]] = OpLabel
; CHECK: OpBranch %[[#bb49:]]
; CHECK: %[[#bb49:]] = OpLabel
; CHECK: OpLoopMerge %[[#bb50:]] %[[#bb51:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb51:]] %[[#bb50:]]
; CHECK: %[[#bb51:]] = OpLabel
; CHECK: OpBranch %[[#bb49:]]
; CHECK: %[[#bb50:]] = OpLabel
; CHECK: OpBranch %[[#bb47:]]
; CHECK: %[[#bb47:]] = OpLabel
; CHECK: OpBranch %[[#bb45:]]
; CHECK: %[[#bb46:]] = OpLabel
; CHECK: OpFunctionEnd
; CHECK: %[[#func_33:]] = OpFunction %[[#void:]] None %[[#]]
; CHECK: %[[#bb52:]] = 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 1
}
; 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 internal spir_func void @main() #0 {
entry:
%0 = call token @llvm.experimental.convergence.entry()
%val = alloca i32, align 4
%i = alloca i32, align 4
store i32 0, ptr %val, align 4
store i32 0, ptr %i, align 4
br label %while.cond
while.cond: ; preds = %if.end4, %if.then3, %if.then, %entry
%1 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ]
%2 = load i32, ptr %i, align 4
%cmp = icmp slt i32 %2, 10
br i1 %cmp, label %while.body, label %while.end
while.body: ; preds = %while.cond
%3 = load i32, ptr %i, align 4
store i32 %3, ptr %val, align 4
%4 = load i32, ptr %val, align 4
%cmp1 = icmp sgt i32 %4, 5
br i1 %cmp1, label %if.then, label %if.end
if.then: ; preds = %while.body
br label %while.cond
if.end: ; preds = %while.body
%5 = load i32, ptr %val, align 4
%cmp2 = icmp sgt i32 %5, 6
br i1 %cmp2, label %if.then3, label %if.end4
if.then3: ; preds = %if.end
br label %while.cond
if.end4: ; preds = %if.end
br label %while.cond
while.end: ; preds = %while.cond
br label %while.cond5
while.cond5: ; preds = %while.end10, %while.end
%6 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ]
br label %while.body6
while.body6: ; preds = %while.cond5
%7 = load i32, ptr %i, align 4
%inc = add nsw i32 %7, 1
store i32 %inc, ptr %i, align 4
br label %while.cond7
while.cond7: ; preds = %while.body9, %while.body6
%8 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %6) ]
%9 = load i32, ptr %i, align 4
%cmp8 = icmp slt i32 %9, 20
br i1 %cmp8, label %while.body9, label %while.end10
while.body9: ; preds = %while.cond7
%10 = load i32, ptr %i, align 4
store i32 %10, ptr %val, align 4
br label %while.cond7
while.end10: ; preds = %while.cond7
%11 = load i32, ptr %i, align 4
%dec = add nsw i32 %11, -1
store i32 %dec, ptr %i, align 4
br label %while.cond5
}
; Function Attrs: convergent norecurse
define void @main.1() #2 {
entry:
call void @main()
ret void
}
; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none)
declare token @llvm.experimental.convergence.loop() #1
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" }
!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}
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