unroll-cost-call.ll
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; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -mcpu=hawaii -loop-unroll -unroll-threshold=100 -unroll-peel-count=0 -unroll-allow-partial=false -unroll-max-iteration-count-to-analyze=16 < %s | FileCheck %s
; CHECK-LABEL: @test_intrinsic_call_cost(
; CHECK-NOT: br i1
define amdgpu_kernel void @test_intrinsic_call_cost(float addrspace(1)* noalias nocapture %out, float addrspace(1)* noalias nocapture %in) #0 {
entry:
br label %for.body
for.body:
%indvars.iv = phi i32 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
%sum.02 = phi float [ %fmul, %for.body ], [ 0.0, %entry ]
%arrayidx.in = getelementptr inbounds float, float addrspace(1)* %in, i32 %indvars.iv
%arrayidx.out = getelementptr inbounds float, float addrspace(1)* %out, i32 %indvars.iv
%load = load float, float addrspace(1)* %arrayidx.in
%call = call float @llvm.minnum.f32(float %load, float 1.0);
%fmul = fmul float %call, %sum.02
store float %fmul, float addrspace(1)* %arrayidx.out
%indvars.iv.next = add i32 %indvars.iv, 1
%exitcond = icmp eq i32 %indvars.iv.next, 16
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret void
}
; CHECK-LABEL: @test_func_call_cost(
; CHECK: br i1 %exitcond
define amdgpu_kernel void @test_func_call_cost(float addrspace(1)* noalias nocapture %out, float addrspace(1)* noalias nocapture %in) #0 {
entry:
br label %for.body
for.body:
%indvars.iv = phi i32 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
%sum.02 = phi float [ %fmul, %for.body ], [ 0.0, %entry ]
%arrayidx.in = getelementptr inbounds float, float addrspace(1)* %in, i32 %indvars.iv
%arrayidx.out = getelementptr inbounds float, float addrspace(1)* %out, i32 %indvars.iv
%load = load float, float addrspace(1)* %arrayidx.in
%fptr = load float(float, float)*, float(float, float )* addrspace(4)* null
%call = tail call float %fptr(float %load, float 1.0)
%fmul = fmul float %call, %sum.02
store float %fmul, float addrspace(1)* %arrayidx.out
%indvars.iv.next = add i32 %indvars.iv, 1
%exitcond = icmp eq i32 %indvars.iv.next, 16
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret void
}
; CHECK-LABEL: @test_indirect_call_cost(
; CHECK: br i1 %exitcond
define amdgpu_kernel void @test_indirect_call_cost(float addrspace(1)* noalias nocapture %out, float addrspace(1)* noalias nocapture %in) #0 {
entry:
br label %for.body
for.body:
%indvars.iv = phi i32 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
%sum.02 = phi float [ %fmul, %for.body ], [ 0.0, %entry ]
%arrayidx.in = getelementptr inbounds float, float addrspace(1)* %in, i32 %indvars.iv
%arrayidx.out = getelementptr inbounds float, float addrspace(1)* %out, i32 %indvars.iv
%load = load float, float addrspace(1)* %arrayidx.in
%min = call float @func(float %load, float 1.0);
%fmul = fmul float %min, %sum.02
store float %fmul, float addrspace(1)* %arrayidx.out
%indvars.iv.next = add i32 %indvars.iv, 1
%exitcond = icmp eq i32 %indvars.iv.next, 16
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret void
}
declare float @llvm.minnum.f32(float, float) #1
declare float @func(float, float) #1
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone speculatable }