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; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv1.5-unknown-vulkan %s -o - | FileCheck %s --check-prefixes=CHECK,SPIRV15
; RUN: llc -verify-machineinstrs -spirv-ext=+SPV_EXT_demote_to_helper_invocation -O0 -mtriple=spirv1.5-unknown-vulkan %s -o - | FileCheck %s --check-prefixes=CHECK,SPIRV16,WITH-EXTENSION,WITH-CAPABILITY
; RUN: llc -verify-machineinstrs -O0 -mtriple=spirv1.6-unknown-vulkan %s -o - | FileCheck %s --check-prefixes=CHECK,SPIRV16,WITH-CAPABILITY
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv1.5-unknown-vulkan %s -o - -filetype=obj | spirv-val %}
; RUN: %if spirv-tools %{ llc -O0 -spirv-ext=+SPV_EXT_demote_to_helper_invocation -mtriple=spirv1.5-unknown-vulkan %s -o - -filetype=obj | spirv-val %}
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv1.6-unknown-vulkan %s -o - -filetype=obj | spirv-val %}
; Make sure lowering is correctly generating spirv code.
; WITH-CAPABILITY-DAG: OpCapability DemoteToHelperInvocation
; WITH-EXTENSION-DAG: OpExtension "SPV_EXT_demote_to_helper_invocation"
; CHECK-DAG: %[[#float:]] = OpTypeFloat 32
; CHECK-DAG: %[[#void:]] = OpTypeVoid
; CHECK-DAG: %[[#bool:]] = OpTypeBool
; CHECK-DAG: %[[#v4bool:]] = OpTypeVector %[[#bool]] 4
; CHECK-DAG: %[[#v4float:]] = OpTypeVector %[[#float]] 4
; CHECK-DAG: %[[#fzero:]] = OpConstant %[[#float]] 0
; CHECK-DAG: %[[#v4fzero:]] = OpConstantNull %[[#v4float]]
define void @test_scalar(float noundef %Buf) {
entry:
; CHECK-LABEL: ; -- Begin function test_scalar
; CHECK: %[[#load:]] = OpFunctionParameter %[[#float]]
; CHECK: %[[#cmplt:]] = OpFOrdLessThan %[[#bool]] %[[#load]] %[[#fzero]]
; CHECK: OpBranchConditional %[[#cmplt]] %[[#truel:]] %[[#endl:]]
; CHECK: %[[#truel]] = OpLabel
; SPIRV15: OpKill
; SPIRV16-NO: OpKill
; SPIRV15-NO: OpBranch %[[#endl]]
; SPIRV16: OpDemoteToHelperInvocation
; SPIRV16: OpBranch %[[#endl]]
; CHECK: %[[#endl]] = OpLabel
%Buf.addr = alloca float, align 4
store float %Buf, ptr %Buf.addr, align 4
%1 = load float, ptr %Buf.addr, align 4
%2 = fcmp olt float %1, 0.000000e+00
br i1 %2, label %lt0, label %end
lt0: ; preds = %entry
call void @llvm.spv.discard()
br label %end
end: ; preds = %lt0, %entry
ret void
}
declare void @llvm.spv.discard()
define void @test_vector(<4 x float> noundef %Buf) {
entry:
; CHECK-LABEL: ; -- Begin function test_vector
; CHECK: %[[#loadvec:]] = OpFunctionParameter %[[#v4float]]
; CHECK: %[[#cmplt:]] = OpFOrdLessThan %[[#v4bool]] %[[#loadvec]] %[[#v4fzero]]
; CHECK: %[[#opany:]] = OpAny %[[#bool]] %[[#cmplt]]
; CHECK: OpBranchConditional %[[#opany]] %[[#truel:]] %[[#endl:]]
; CHECK: %[[#truel]] = OpLabel
; SPIRV15: OpKill
; SPIRV16-NO: OpKill
; SPIRV15-NO: OpBranch %[[#endl]]
; SPIRV16: OpDemoteToHelperInvocation
; SPIRV16: OpBranch %[[#endl]]
; CHECK: %[[#endl]] = OpLabel
%Buf.addr = alloca <4 x float>, align 16
store <4 x float> %Buf, ptr %Buf.addr, align 16
%1 = load <4 x float>, ptr %Buf.addr, align 16
%2 = fcmp olt <4 x float> %1, zeroinitializer
%3 = call i1 @llvm.spv.any.v4i1(<4 x i1> %2)
br i1 %3, label %lt0, label %end
lt0: ; preds = %entry
call void @llvm.spv.discard()
br label %end
end: ; preds = %lt0, %entry
ret void
}
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