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[SCEV] Cache results during GetMinTrailingZeros query
Differential Revision: https://reviews.llvm.org/D29759 llvm-svn: 295060
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,63 @@ | ||
; RUN: opt -S -indvars < %s | FileCheck %s | ||
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; CHECK: @test | ||
; CHECK: %5 = add i32 %local_6_, %local_0_ | ||
; CEHCK: %37 = mul i32 %36, %36 | ||
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define i32 @test(i32, i32) { | ||
bci_0: | ||
br label %bci_30 | ||
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bci_68: ; preds = %bci_45 | ||
%local_6_.lcssa = phi i32 [ %local_6_, %bci_45 ] | ||
%.lcssa1.lcssa = phi i32 [ %37, %bci_45 ] | ||
%.lcssa.lcssa = phi i32 [ 34, %bci_45 ] | ||
%2 = add i32 %local_6_.lcssa, 262 | ||
%3 = add i32 %2, %.lcssa1.lcssa | ||
%4 = add i32 %3, %.lcssa.lcssa | ||
ret i32 %4 | ||
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bci_30: ; preds = %bci_45, %bci_0 | ||
%local_0_ = phi i32 [ %0, %bci_0 ], [ %38, %bci_45 ] | ||
%local_6_ = phi i32 [ 2, %bci_0 ], [ %39, %bci_45 ] | ||
%5 = add i32 %local_6_, %local_0_ | ||
br label %bci_45 | ||
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bci_45: ; preds = %bci_30 | ||
%6 = mul i32 %5, %5 | ||
%7 = mul i32 %6, %6 | ||
%8 = mul i32 %7, %7 | ||
%9 = mul i32 %8, %8 | ||
%10 = mul i32 %9, %9 | ||
%11 = mul i32 %10, %10 | ||
%12 = mul i32 %11, %11 | ||
%13 = mul i32 %12, %12 | ||
%14 = mul i32 %13, %13 | ||
%15 = mul i32 %14, %14 | ||
%16 = mul i32 %15, %15 | ||
%17 = mul i32 %16, %16 | ||
%18 = mul i32 %17, %17 | ||
%19 = mul i32 %18, %18 | ||
%20 = mul i32 %19, %19 | ||
%21 = mul i32 %20, %20 | ||
%22 = mul i32 %21, %21 | ||
%23 = mul i32 %22, %22 | ||
%24 = mul i32 %23, %23 | ||
%25 = mul i32 %24, %24 | ||
%26 = mul i32 %25, %25 | ||
%27 = mul i32 %26, %26 | ||
%28 = mul i32 %27, %27 | ||
%29 = mul i32 %28, %28 | ||
%30 = mul i32 %29, %29 | ||
%31 = mul i32 %30, %30 | ||
%32 = mul i32 %31, %31 | ||
%33 = mul i32 %32, %32 | ||
%34 = mul i32 %33, %33 | ||
%35 = mul i32 %34, %34 | ||
%36 = mul i32 %35, %35 | ||
%37 = mul i32 %36, %36 | ||
%38 = add i32 %37, -11 | ||
%39 = add i32 %local_6_, 1 | ||
%40 = icmp sgt i32 %39, 76 | ||
br i1 %40, label %bci_68, label %bci_30 | ||
} |