2c1a570aab
I'm not sure why the code here is skipping calls since TTI does try to do something for general calls, but it at least should allow intrinsics. Skip intrinsics that should not be omitted as calls, which is by far the most common case on AMDGPU. llvm-svn: 335645
78 lines
3.1 KiB
LLVM
78 lines
3.1 KiB
LLVM
; 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
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; CHECK-LABEL: @test_intrinsic_call_cost(
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; CHECK-NOT: br i1
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define amdgpu_kernel void @test_intrinsic_call_cost(float addrspace(1)* noalias nocapture %out, float addrspace(1)* noalias nocapture %in) #0 {
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entry:
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br label %for.body
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for.body:
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%indvars.iv = phi i32 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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%sum.02 = phi float [ %fmul, %for.body ], [ 0.0, %entry ]
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%arrayidx.in = getelementptr inbounds float, float addrspace(1)* %in, i32 %indvars.iv
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%arrayidx.out = getelementptr inbounds float, float addrspace(1)* %out, i32 %indvars.iv
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%load = load float, float addrspace(1)* %arrayidx.in
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%call = call float @llvm.minnum.f32(float %load, float 1.0);
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%fmul = fmul float %call, %sum.02
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store float %fmul, float addrspace(1)* %arrayidx.out
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%indvars.iv.next = add i32 %indvars.iv, 1
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%exitcond = icmp eq i32 %indvars.iv.next, 16
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret void
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}
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; CHECK-LABEL: @test_func_call_cost(
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; CHECK: br i1 %exitcond
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define amdgpu_kernel void @test_func_call_cost(float addrspace(1)* noalias nocapture %out, float addrspace(1)* noalias nocapture %in) #0 {
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entry:
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br label %for.body
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for.body:
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%indvars.iv = phi i32 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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%sum.02 = phi float [ %fmul, %for.body ], [ 0.0, %entry ]
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%arrayidx.in = getelementptr inbounds float, float addrspace(1)* %in, i32 %indvars.iv
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%arrayidx.out = getelementptr inbounds float, float addrspace(1)* %out, i32 %indvars.iv
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%load = load float, float addrspace(1)* %arrayidx.in
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%fptr = load float(float, float)*, float(float, float )* addrspace(4)* null
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%call = tail call float %fptr(float %load, float 1.0)
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%fmul = fmul float %call, %sum.02
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store float %fmul, float addrspace(1)* %arrayidx.out
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%indvars.iv.next = add i32 %indvars.iv, 1
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%exitcond = icmp eq i32 %indvars.iv.next, 16
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret void
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}
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; CHECK-LABEL: @test_indirect_call_cost(
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; CHECK: br i1 %exitcond
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define amdgpu_kernel void @test_indirect_call_cost(float addrspace(1)* noalias nocapture %out, float addrspace(1)* noalias nocapture %in) #0 {
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entry:
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br label %for.body
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for.body:
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%indvars.iv = phi i32 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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%sum.02 = phi float [ %fmul, %for.body ], [ 0.0, %entry ]
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%arrayidx.in = getelementptr inbounds float, float addrspace(1)* %in, i32 %indvars.iv
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%arrayidx.out = getelementptr inbounds float, float addrspace(1)* %out, i32 %indvars.iv
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%load = load float, float addrspace(1)* %arrayidx.in
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%min = call float @func(float %load, float 1.0);
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%fmul = fmul float %min, %sum.02
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store float %fmul, float addrspace(1)* %arrayidx.out
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%indvars.iv.next = add i32 %indvars.iv, 1
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%exitcond = icmp eq i32 %indvars.iv.next, 16
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret void
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}
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declare float @llvm.minnum.f32(float, float) #1
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declare float @func(float, float) #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone speculatable }
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