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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 %}
;
; int foo() { return true; }
;
; [numthreads(1, 1, 1)]
; void main() {
; int val = 0;
; int i = 0;
;
; //////////////////////////
; //// Basic while loop ////
; //////////////////////////
; while (i < 10) {
; val = i;
; }
;
; //////////////////////////
; //// infinite loop ////
; //////////////////////////
; while (true) {
; val = 0;
; }
;
; //////////////////////////
; //// Null Body ////
; //////////////////////////
; while (val < 20)
; ;
;
; ////////////////////////////////////////////////////////////////
; //// Condition variable has VarDecl ////
; //// foo() returns an integer which must be cast to boolean ////
; ////////////////////////////////////////////////////////////////
; while (int a = foo()) {
; val = a;
; }
;
; }
; CHECK: %[[#func_11:]] = OpFunction %[[#uint:]] DontInline %[[#]]
; CHECK: %[[#bb20:]] = OpLabel
; CHECK: OpReturnValue %[[#]]
; CHECK: OpFunctionEnd
; CHECK: %[[#func_12:]] = OpFunction %[[#void:]] DontInline %[[#]]
; CHECK: %[[#bb21:]] = OpLabel
; CHECK: OpBranch %[[#bb22:]]
; CHECK: %[[#bb22]] = OpLabel
; CHECK: OpLoopMerge %[[#bb23:]] %[[#bb24:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb24]] %[[#bb23]]
; CHECK: %[[#bb23]] = OpLabel
; CHECK: OpBranch %[[#bb25:]]
; CHECK: %[[#bb25]] = OpLabel
; CHECK: OpLoopMerge %[[#bb26:]] %[[#bb27:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb26]] %[[#bb27]]
; CHECK: %[[#bb27]] = OpLabel
; CHECK: OpBranch %[[#bb25]]
; CHECK: %[[#bb26]] = OpLabel
; CHECK-NEXT: OpUnreachable
; CHECK: %[[#bb24]] = OpLabel
; CHECK: OpBranch %[[#bb22]]
; CHECK: OpFunctionEnd
; CHECK: %[[#func_18:]] = OpFunction %[[#void:]] None %[[#]]
; CHECK: %[[#bb28:]] = 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 = %while.body, %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
br label %while.cond
while.end: ; preds = %while.cond
br label %while.cond1
while.cond1: ; preds = %while.body2, %while.end
%4 = call token @llvm.experimental.convergence.loop() [ "convergencectrl"(token %0) ]
br label %while.body2
while.body2: ; preds = %while.cond1
store i32 0, ptr %val, align 4
br label %while.cond1
}
; 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}
|
