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https://github.com/c64scene-ar/llvm-6502.git
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dab249b3b7
they are lowered to instruction sequences more complex than a simple load, such that CodeGen cannot rematerialize them, a reload from a spill slot is likely to be cheaper than the complex sequence. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89374 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1018 B
LLVM
40 lines
1018 B
LLVM
; RUN: opt < %s -licm -S | FileCheck %s
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@a = external constant float*
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define void @test(i32 %count) {
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entry:
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br label %forcond
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; CHECK: %tmp3 = load float** @a
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; CHECK: br label %forcond
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forcond:
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %forbody ]
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%cmp = icmp ult i32 %i.0, %count
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br i1 %cmp, label %forbody, label %afterfor
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; CHECK: %i.0 = phi i32 [ 0, %entry ], [ %inc, %forbody ]
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; CHECK: %cmp = icmp ult i32 %i.0, %count
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; CHECK: br i1 %cmp, label %forbody, label %afterfor
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forbody:
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%tmp3 = load float** @a
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%arrayidx = getelementptr float* %tmp3, i32 %i.0
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%tmp7 = uitofp i32 %i.0 to float
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store float %tmp7, float* %arrayidx
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%inc = add i32 %i.0, 1
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br label %forcond
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; CHECK: %arrayidx = getelementptr float* %tmp3, i32 %i.0
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; CHECK: %tmp7 = uitofp i32 %i.0 to float
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; CHECK: store float %tmp7, float* %arrayidx
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; CHECK: %inc = add i32 %i.0, 1
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; CHECK: br label %forcond
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afterfor:
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ret void
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}
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; CHECK: ret void
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