; 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=3
;
; int process() {
; int c1 = 0;
; int c2 = 1;
; int c3 = 0;
; int c4 = 1;
; int val = 0;
;
; if (c1) {
; if (c2)
; val = 1;
; } else {
; if (c3) {
; val = 2;
; } else {
; if (c4) {
; val = 3;
; }
; }
; }
; return val;
; }
;
; [numthreads(1, 1, 1)]
; void main() {
; process();
; }
; CHECK: %[[#func_11:]] = OpFunction %[[#uint:]] DontInline %[[#]]
; CHECK: %[[#bb30:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb31:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb32:]] %[[#bb33:]]
; CHECK: %[[#bb32:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb34:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb35:]] %[[#bb34:]]
; CHECK: %[[#bb33:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb36:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb37:]] %[[#bb38:]]
; CHECK: %[[#bb35:]] = OpLabel
; CHECK: OpBranch %[[#bb34:]]
; CHECK: %[[#bb37:]] = OpLabel
; CHECK: OpBranch %[[#bb36:]]
; CHECK: %[[#bb38:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb39:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb40:]] %[[#bb39:]]
; CHECK: %[[#bb34:]] = OpLabel
; CHECK: OpBranch %[[#bb31:]]
; CHECK: %[[#bb40:]] = OpLabel
; CHECK: OpBranch %[[#bb39:]]
; CHECK: %[[#bb39:]] = OpLabel
; CHECK: OpBranch %[[#bb36:]]
; CHECK: %[[#bb36:]] = OpLabel
; CHECK: OpBranch %[[#bb31:]]
; CHECK: %[[#bb31:]] = OpLabel
; CHECK: OpReturnValue %[[#]]
; CHECK: OpFunctionEnd
; CHECK: %[[#func_26:]] = OpFunction %[[#void:]] DontInline %[[#]]
; CHECK: %[[#bb41:]] = OpLabel
; CHECK: OpReturn
; CHECK: OpFunctionEnd
; CHECK: %[[#func_28:]] = OpFunction %[[#void:]] None %[[#]]
; CHECK: %[[#bb42:]] = 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()
%c1 = alloca i32, align 4
%c2 = alloca i32, align 4
%c3 = alloca i32, align 4
%c4 = alloca i32, align 4
%val = alloca i32, align 4
store i32 0, ptr %c1, align 4
store i32 1, ptr %c2, align 4
store i32 0, ptr %c3, align 4
store i32 1, ptr %c4, align 4
store i32 0, ptr %val, align 4
%1 = load i32, ptr %c1, align 4
%tobool = icmp ne i32 %1, 0
br i1 %tobool, label %if.then, label %if.else
if.then: ; preds = %entry
%2 = load i32, ptr %c2, align 4
%tobool1 = icmp ne i32 %2, 0
br i1 %tobool1, label %if.then2, label %if.end
if.then2: ; preds = %if.then
store i32 1, ptr %val, align 4
br label %if.end
if.end: ; preds = %if.then2, %if.then
br label %if.end10
if.else: ; preds = %entry
%3 = load i32, ptr %c3, align 4
%tobool3 = icmp ne i32 %3, 0
br i1 %tobool3, label %if.then4, label %if.else5
if.then4: ; preds = %if.else
store i32 2, ptr %val, align 4
br label %if.end9
if.else5: ; preds = %if.else
%4 = load i32, ptr %c4, align 4
%tobool6 = icmp ne i32 %4, 0
br i1 %tobool6, label %if.then7, label %if.end8
if.then7: ; preds = %if.else5
store i32 3, ptr %val, align 4
br label %if.end8
if.end8: ; preds = %if.then7, %if.else5
br label %if.end9
if.end9: ; preds = %if.end8, %if.then4
br label %if.end10
if.end10: ; preds = %if.end9, %if.end
%5 = load i32, ptr %val, align 4
ret i32 %5
}
; 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()
%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}
Codebase Browser
llvm