forked from OSchip/llvm-project
48 lines
1.7 KiB
LLVM
48 lines
1.7 KiB
LLVM
; RUN: opt -hardware-loops -force-hardware-loops=true -hardware-loop-decrement=1 -hardware-loop-counter-bitwidth=32 -S %s -o - | FileCheck %s
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; RUN: opt -hardware-loops -force-hardware-loops=true -hardware-loop-decrement=1 -hardware-loop-counter-bitwidth=32 -force-hardware-loop-phi=true -S %s -o - | FileCheck %s
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; RUN: opt -hardware-loops -force-hardware-loops=true -hardware-loop-decrement=1 -hardware-loop-counter-bitwidth=32 -force-nested-hardware-loop=true -S %s -o - | FileCheck %s
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; CHECK-LABEL: float_counter
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; CHECK-NOT: set.loop.iterations
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; CHECK-NOT: loop.decrement
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define void @float_counter(i32* nocapture %A, float %N) {
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entry:
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%cmp6 = fcmp ogt float %N, 0.000000e+00
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br i1 %cmp6, label %while.body, label %while.end
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while.body:
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%i.07 = phi i32 [ %inc, %while.body ], [ 0, %entry ]
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%arrayidx = getelementptr inbounds i32, i32* %A, i32 %i.07
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store i32 %i.07, i32* %arrayidx, align 4
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%inc = add i32 %i.07, 1
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%conv = uitofp i32 %inc to float
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%cmp = fcmp olt float %conv, %N
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br i1 %cmp, label %while.body, label %while.end
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while.end:
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ret void
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}
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; CHECK-LABEL: variant_counter
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; CHECK-NOT: set.loop.iterations
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; CHECK-NOT: loop.decrement
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define void @variant_counter(i32* nocapture %A, i32* nocapture readonly %B) {
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entry:
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%0 = load i32, i32* %B, align 4
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%cmp7 = icmp eq i32 %0, 0
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br i1 %cmp7, label %while.end, label %while.body
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while.body:
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%i.08 = phi i32 [ %inc, %while.body ], [ 0, %entry ]
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%arrayidx1 = getelementptr inbounds i32, i32* %A, i32 %i.08
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store i32 %i.08, i32* %arrayidx1, align 4
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%inc = add nuw i32 %i.08, 1
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%arrayidx = getelementptr inbounds i32, i32* %B, i32 %inc
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%1 = load i32, i32* %arrayidx, align 4
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%cmp = icmp ult i32 %inc, %1
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br i1 %cmp, label %while.body, label %while.end
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while.end:
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ret void
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}
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