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36a0947820
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
32 lines
1.2 KiB
LLVM
32 lines
1.2 KiB
LLVM
; RUN: llc < %s -march=x86
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i386-apple-darwin8"
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define hidden float @__floatundisf(i64 %u) nounwind readnone {
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entry:
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%0 = icmp ugt i64 %u, 9007199254740991 ; <i1> [#uses=1]
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br i1 %0, label %bb, label %bb2
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bb: ; preds = %entry
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%1 = and i64 %u, 2047 ; <i64> [#uses=1]
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%2 = icmp eq i64 %1, 0 ; <i1> [#uses=1]
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br i1 %2, label %bb2, label %bb1
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bb1: ; preds = %bb
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%3 = or i64 %u, 2048 ; <i64> [#uses=1]
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%4 = and i64 %3, -2048 ; <i64> [#uses=1]
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br label %bb2
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bb2: ; preds = %bb1, %bb, %entry
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%u_addr.0 = phi i64 [ %4, %bb1 ], [ %u, %entry ], [ %u, %bb ] ; <i64> [#uses=2]
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%5 = lshr i64 %u_addr.0, 32 ; <i64> [#uses=1]
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%6 = trunc i64 %5 to i32 ; <i32> [#uses=1]
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%7 = uitofp i32 %6 to double ; <double> [#uses=1]
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%8 = fmul double %7, 0x41F0000000000000 ; <double> [#uses=1]
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%9 = trunc i64 %u_addr.0 to i32 ; <i32> [#uses=1]
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%10 = uitofp i32 %9 to double ; <double> [#uses=1]
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%11 = fadd double %10, %8 ; <double> [#uses=1]
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%12 = fptrunc double %11 to float ; <float> [#uses=1]
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ret float %12
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}
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