; 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 %}
; RUN: llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | spirv-sim --function=_Z7processv --wave=1 --expects=2563170
;
; int process() {
; int val = 0;
;
; for (int i = 0; i < 10; ++i) {
; val = val + i;
;
; for (int j = 0; j < 2; ++j) {
; for (int k = 0; k < 2; ++k) {
; val = val + k;
; }
;
; val = val * 2;
;
; }
; }
; return val;
; }
;
; [numthreads(1, 1, 1)]
; void main() {
; process();
; }
; CHECK: %[[#func_11:]] = OpFunction %[[#uint:]] DontInline %[[#]]
; CHECK: %[[#bb41:]] = OpLabel
; CHECK: OpBranch %[[#bb42:]]
; CHECK: %[[#bb42:]] = OpLabel
; CHECK: OpLoopMerge %[[#bb43:]] %[[#bb44:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb45:]] %[[#bb43:]]
; CHECK: %[[#bb45:]] = OpLabel
; CHECK: OpBranch %[[#bb46:]]
; CHECK: %[[#bb46:]] = OpLabel
; CHECK: OpLoopMerge %[[#bb47:]] %[[#bb48:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb49:]] %[[#bb47:]]
; CHECK: %[[#bb49:]] = OpLabel
; CHECK: OpBranch %[[#bb50:]]
; CHECK: %[[#bb50:]] = OpLabel
; CHECK: OpLoopMerge %[[#bb51:]] %[[#bb52:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb53:]] %[[#bb51:]]
; CHECK: %[[#bb53:]] = OpLabel
; CHECK: OpBranch %[[#bb52:]]
; CHECK: %[[#bb52:]] = OpLabel
; CHECK: OpBranch %[[#bb50:]]
; CHECK: %[[#bb51:]] = OpLabel
; CHECK: OpBranch %[[#bb48:]]
; CHECK: %[[#bb48:]] = OpLabel
; CHECK: OpBranch %[[#bb46:]]
; CHECK: %[[#bb47:]] = OpLabel
; CHECK: OpBranch %[[#bb44:]]
; CHECK: %[[#bb44:]] = OpLabel
; CHECK: OpBranch %[[#bb42:]]
; CHECK: %[[#bb43:]] = OpLabel
; CHECK: OpReturnValue %[[#]]
; CHECK: OpFunctionEnd
; CHECK: %[[#func_37:]] = OpFunction %[[#void:]] DontInline %[[#]]
; CHECK: %[[#bb54:]] = OpLabel
; CHECK: OpReturn
; CHECK: OpFunctionEnd
; CHECK: %[[#func_39:]] = OpFunction %[[#void:]] None %[[#]]
; CHECK: %[[#bb55:]] = 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 @_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
br label %for.cond
for.cond: ; preds = %for.inc11, %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 %for.body, label %for.end13
for.body: ; preds = %for.cond
%3 = load i32, ptr %val, align 4
%4 = load i32, ptr %i, align 4
%add = add nsw i32 %3, %4
store i32 %add, ptr %val, align 4
store i32 0, ptr %j, align 4
br label %for.cond1
for.cond1: ; preds = %for.inc8, %for.body
%5 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %1) ]
%6 = load i32, ptr %j, align 4
%cmp2 = icmp slt i32 %6, 2
br i1 %cmp2, label %for.body3, label %for.end10
for.body3: ; preds = %for.cond1
store i32 0, ptr %k, align 4
br label %for.cond4
for.cond4: ; preds = %for.inc, %for.body3
%7 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %5) ]
%8 = load i32, ptr %k, align 4
%cmp5 = icmp slt i32 %8, 2
br i1 %cmp5, label %for.body6, label %for.end
for.body6: ; preds = %for.cond4
%9 = load i32, ptr %val, align 4
%10 = load i32, ptr %k, align 4
%add7 = add nsw i32 %9, %10
store i32 %add7, ptr %val, align 4
br label %for.inc
for.inc: ; preds = %for.body6
%11 = load i32, ptr %k, align 4
%inc = add nsw i32 %11, 1
store i32 %inc, ptr %k, align 4
br label %for.cond4
for.end: ; preds = %for.cond4
%12 = load i32, ptr %val, align 4
%mul = mul nsw i32 %12, 2
store i32 %mul, ptr %val, align 4
br label %for.inc8
for.inc8: ; preds = %for.end
%13 = load i32, ptr %j, align 4
%inc9 = add nsw i32 %13, 1
store i32 %inc9, ptr %j, align 4
br label %for.cond1
for.end10: ; preds = %for.cond1
br label %for.inc11
for.inc11: ; preds = %for.end10
%14 = load i32, ptr %i, align 4
%inc12 = add nsw i32 %14, 1
store i32 %inc12, ptr %i, align 4
br label %for.cond
for.end13: ; preds = %for.cond
%15 = load i32, ptr %val, align 4
ret i32 %15
}
; 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() #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}
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