From dc53ecaf9b29276190522e3336f4bc24def6cd4e Mon Sep 17 00:00:00 2001 From: Jonas Paulsson Date: Thu, 2 Feb 2017 15:42:14 +0000 Subject: [PATCH] [SystemZ] Add comment for ISD::FP_TO_UINT expansion. (Copied from the fp-conv-10.ll test to SystemZISelLowering.cpp) Review: Ulrich Weigand git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293900 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/SystemZ/SystemZISelLowering.cpp | 3 +++ 1 file changed, 3 insertions(+) diff --git a/lib/Target/SystemZ/SystemZISelLowering.cpp b/lib/Target/SystemZ/SystemZISelLowering.cpp index e5477f8c9c1..afc9e60bdf2 100644 --- a/lib/Target/SystemZ/SystemZISelLowering.cpp +++ b/lib/Target/SystemZ/SystemZISelLowering.cpp @@ -194,6 +194,9 @@ SystemZTargetLowering::SystemZTargetLowering(const TargetMachine &TM, setOperationAction(ISD::UMUL_LOHI, VT, Custom); // Only z196 and above have native support for conversions to unsigned. + // On z10, promoting to i64 doesn't generate an inexact condition for + // values that are outside the i32 range but in the i64 range, so use + // the default expansion. if (!Subtarget.hasFPExtension()) setOperationAction(ISD::FP_TO_UINT, VT, Expand); } -- 2.50.1