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| author | Bill Wendling <isanbard@gmail.com> | 2009-01-17 07:42:44 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2009-01-17 07:42:44 +0000 |
| commit | 959fb88949e147a90f0d970407df4b6bd6c57ed7 (patch) | |
| tree | e44f2d958166824122522f59f4f11e6793740a10 | |
| parent | 030939c87b68292e474dbf518eebf83c9d78d01c (diff) | |
| download | llvm-959fb88949e147a90f0d970407df4b6bd6c57ed7.tar.gz llvm-959fb88949e147a90f0d970407df4b6bd6c57ed7.tar.bz2 llvm-959fb88949e147a90f0d970407df4b6bd6c57ed7.tar.xz | |
Testcase for last commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62418 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/CodeGen/X86/2009-01-16-UIntToFP.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2009-01-16-UIntToFP.ll b/test/CodeGen/X86/2009-01-16-UIntToFP.ll new file mode 100644 index 0000000000..6de11c9479 --- /dev/null +++ b/test/CodeGen/X86/2009-01-16-UIntToFP.ll @@ -0,0 +1,31 @@ +; 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 +} |