; 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=2
;
; int process() {
; int c = 0;
; int val = 0;
;
; // Both then and else
; if (c) {
; val = val + 1;
; } else {
; val = val + 2;
; }
;
; // No else
; if (c)
; val = 1;
;
; // Empty then
; if (c) {
; } else {
; val = 2;
; }
;
; // Null body
; if (c)
; ;
;
; if (int d = val) {
; c = true;
; }
;
; return val;
; }
;
; [numthreads(1, 1, 1)]
; void main() {
; process();
; }
; CHECK: %[[#func_10:]] = OpFunction %[[#uint:]] DontInline %[[#]]
; CHECK: %[[#bb34:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb35:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb36:]] %[[#bb37:]]
; CHECK: %[[#bb36:]] = OpLabel
; CHECK: OpBranch %[[#bb35:]]
; CHECK: %[[#bb37:]] = OpLabel
; CHECK: OpBranch %[[#bb35:]]
; CHECK: %[[#bb35:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb38:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb39:]] %[[#bb38:]]
; CHECK: %[[#bb39:]] = OpLabel
; CHECK: OpBranch %[[#bb38:]]
; CHECK: %[[#bb38:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb40:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb40:]] %[[#bb41:]]
; CHECK: %[[#bb41:]] = OpLabel
; CHECK: OpBranch %[[#bb40:]]
; CHECK: %[[#bb40:]] = OpLabel
; CHECK: OpBranch %[[#bb42:]]
; CHECK: %[[#bb42:]] = OpLabel
; CHECK: OpSelectionMerge %[[#bb43:]] None
; CHECK: OpBranchConditional %[[#]] %[[#bb44:]] %[[#bb43:]]
; CHECK: %[[#bb44:]] = OpLabel
; CHECK: OpBranch %[[#bb43:]]
; CHECK: %[[#bb43:]] = OpLabel
; CHECK: OpReturnValue %[[#]]
; CHECK: OpFunctionEnd
; CHECK: %[[#func_30:]] = OpFunction %[[#void:]] DontInline %[[#]]
; CHECK: %[[#bb45:]] = OpLabel
; CHECK: OpReturn
; CHECK: OpFunctionEnd
; CHECK: %[[#func_32:]] = OpFunction %[[#void:]] None %[[#]]
; CHECK: %[[#bb46:]] = 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()
%c = alloca i32, align 4
%val = alloca i32, align 4
%d = alloca i32, align 4
store i32 0, ptr %c, align 4
store i32 0, ptr %val, align 4
%1 = load i32, ptr %c, 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 %val, align 4
%add = add nsw i32 %2, 1
store i32 %add, ptr %val, align 4
br label %if.end
if.else: ; preds = %entry
%3 = load i32, ptr %val, align 4
%add1 = add nsw i32 %3, 2
store i32 %add1, ptr %val, align 4
br label %if.end
if.end: ; preds = %if.else, %if.then
%4 = load i32, ptr %c, align 4
%tobool2 = icmp ne i32 %4, 0
br i1 %tobool2, label %if.then3, label %if.end4
if.then3: ; preds = %if.end
store i32 1, ptr %val, align 4
br label %if.end4
if.end4: ; preds = %if.then3, %if.end
%5 = load i32, ptr %c, align 4
%tobool5 = icmp ne i32 %5, 0
br i1 %tobool5, label %if.then6, label %if.else7
if.then6: ; preds = %if.end4
br label %if.end8
if.else7: ; preds = %if.end4
store i32 2, ptr %val, align 4
br label %if.end8
if.end8: ; preds = %if.else7, %if.then6
%6 = load i32, ptr %c, align 4
%tobool9 = icmp ne i32 %6, 0
br i1 %tobool9, label %if.then10, label %if.end11
if.then10: ; preds = %if.end8
br label %if.end11
if.end11: ; preds = %if.then10, %if.end8
%7 = load i32, ptr %val, align 4
store i32 %7, ptr %d, align 4
%8 = load i32, ptr %d, align 4
%tobool12 = icmp ne i32 %8, 0
br i1 %tobool12, label %if.then13, label %if.end14
if.then13: ; preds = %if.end11
store i32 1, ptr %c, align 4
br label %if.end14
if.end14: ; preds = %if.then13, %if.end11
%9 = load i32, ptr %val, align 4
ret i32 %9
}
; 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