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; 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 %}
;
; [numthreads(1, 1, 1)]
; void main() {
; int val=0, i=0, j=0, k=0;
;
; while (i < 10) {
; val = val + i;
; while (j < 20) {
; while (k < 30) {
; val = val + k;
; ++k;
; }
;
; val = val * 2;
; ++j;
; }
;
; ++i;
; }
; }
; CHECK: %[[#func_12:]] = OpFunction %[[#void:]] DontInline %[[#]]
; CHECK: %[[#bb39:]] = OpLabel
; CHECK: OpBranch %[[#bb40:]]
; CHECK: %[[#bb40]] = OpLabel
; CHECK: OpLoopMerge %[[#bb41:]] %[[#bb42:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb43:]] %[[#bb41]]
; CHECK: %[[#bb41]] = OpLabel
; CHECK: OpReturn
; CHECK: %[[#bb43]] = OpLabel
; CHECK: OpBranch %[[#bb44:]]
; CHECK: %[[#bb44]] = OpLabel
; CHECK: OpLoopMerge %[[#bb45:]] %[[#bb46:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb47:]] %[[#bb45]]
; CHECK: %[[#bb45]] = OpLabel
; CHECK: OpBranch %[[#bb42]]
; CHECK: %[[#bb42]] = OpLabel
; CHECK: OpBranch %[[#bb40]]
; CHECK: %[[#bb47]] = OpLabel
; CHECK: OpLoopMerge %[[#bb48:]] %[[#bb49:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb49]] %[[#bb48]]
; CHECK: %[[#bb48]] = OpLabel
; CHECK: OpBranch %[[#bb46]]
; CHECK: %[[#bb46]] = OpLabel
; CHECK: OpBranch %[[#bb44]]
; CHECK: %[[#bb49]] = OpLabel
; CHECK: OpBranch %[[#bb47]]
; CHECK: OpFunctionEnd
; CHECK: %[[#func_37:]] = OpFunction %[[#void:]] None %[[#]]
; CHECK: %[[#bb50:]] = 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 internal spir_func void @main() #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
store i32 0, ptr %j, align 4
store i32 0, ptr %k, align 4
br label %while.cond
while.cond: ; preds = %while.end9, %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.end11
while.body: ; preds = %while.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
br label %while.cond1
while.cond1: ; preds = %while.end, %while.body
%5 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %1) ]
%6 = load i32, ptr %j, align 4
%cmp2 = icmp slt i32 %6, 20
br i1 %cmp2, label %while.body3, label %while.end9
while.body3: ; preds = %while.cond1
br label %while.cond4
while.cond4: ; preds = %while.body6, %while.body3
%7 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %5) ]
%8 = load i32, ptr %k, align 4
%cmp5 = icmp slt i32 %8, 30
br i1 %cmp5, label %while.body6, label %while.end
while.body6: ; preds = %while.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
%11 = load i32, ptr %k, align 4
%inc = add nsw i32 %11, 1
store i32 %inc, ptr %k, align 4
br label %while.cond4
while.end: ; preds = %while.cond4
%12 = load i32, ptr %val, align 4
%mul = mul nsw i32 %12, 2
store i32 %mul, ptr %val, align 4
%13 = load i32, ptr %j, align 4
%inc8 = add nsw i32 %13, 1
store i32 %inc8, ptr %j, align 4
br label %while.cond1
while.end9: ; preds = %while.cond1
%14 = load i32, ptr %i, align 4
%inc10 = add nsw i32 %14, 1
store i32 %inc10, ptr %i, align 4
br label %while.cond
while.end11: ; preds = %while.cond
ret void
}
; Function Attrs: convergent norecurse
define void @main.1() #1 {
entry:
call void @main()
ret void
}
; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none)
declare token @llvm.experimental.convergence.entry() #2
; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none)
declare token @llvm.experimental.convergence.loop() #2
attributes #0 = { convergent noinline norecurse nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
attributes #1 = { convergent norecurse "frame-pointer"="all" "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
attributes #2 = { convergent nocallback nofree nosync nounwind willreturn memory(none) }
!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}
|
