forked from OSchip/llvm-project
32 lines
1.2 KiB
LLVM
32 lines
1.2 KiB
LLVM
; RUN: llvm-as < %s | llc -march=x86
|
|
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"
|
|
target triple = "i386-apple-darwin8"
|
|
|
|
define hidden float @__floatundisf(i64 %u) nounwind readnone {
|
|
entry:
|
|
%0 = icmp ugt i64 %u, 9007199254740991 ; <i1> [#uses=1]
|
|
br i1 %0, label %bb, label %bb2
|
|
|
|
bb: ; preds = %entry
|
|
%1 = and i64 %u, 2047 ; <i64> [#uses=1]
|
|
%2 = icmp eq i64 %1, 0 ; <i1> [#uses=1]
|
|
br i1 %2, label %bb2, label %bb1
|
|
|
|
bb1: ; preds = %bb
|
|
%3 = or i64 %u, 2048 ; <i64> [#uses=1]
|
|
%4 = and i64 %3, -2048 ; <i64> [#uses=1]
|
|
br label %bb2
|
|
|
|
bb2: ; preds = %bb1, %bb, %entry
|
|
%u_addr.0 = phi i64 [ %4, %bb1 ], [ %u, %entry ], [ %u, %bb ] ; <i64> [#uses=2]
|
|
%5 = lshr i64 %u_addr.0, 32 ; <i64> [#uses=1]
|
|
%6 = trunc i64 %5 to i32 ; <i32> [#uses=1]
|
|
%7 = uitofp i32 %6 to double ; <double> [#uses=1]
|
|
%8 = mul double %7, 0x41F0000000000000 ; <double> [#uses=1]
|
|
%9 = trunc i64 %u_addr.0 to i32 ; <i32> [#uses=1]
|
|
%10 = uitofp i32 %9 to double ; <double> [#uses=1]
|
|
%11 = add double %10, %8 ; <double> [#uses=1]
|
|
%12 = fptrunc double %11 to float ; <float> [#uses=1]
|
|
ret float %12
|
|
}
|