From 344c4f286cbe4b6b03d584a3f8191cec892b34a8 Mon Sep 17 00:00:00 2001 From: Jonas Paulsson Date: Wed, 10 May 2017 13:03:25 +0000 Subject: [SystemZ] Implement getRepRegClassFor() This method must return a valid register class, or the list-ilp isel scheduler will crash. For MVT::Untyped nullptr was previously returned, but now ADDR128BitRegClass is returned instead. This is needed just as long as list-ilp (and probably also list-hybrid) is still there. Review: Ulrich Weigand, A Trick https://reviews.llvm.org/D32802 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302649 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGen/SystemZ/list-ilp-crash.ll | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 test/CodeGen/SystemZ/list-ilp-crash.ll (limited to 'test/CodeGen/SystemZ') diff --git a/test/CodeGen/SystemZ/list-ilp-crash.ll b/test/CodeGen/SystemZ/list-ilp-crash.ll new file mode 100644 index 00000000000..c67ed318b93 --- /dev/null +++ b/test/CodeGen/SystemZ/list-ilp-crash.ll @@ -0,0 +1,23 @@ +; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 -pre-RA-sched=list-ilp | FileCheck %s +; +; Check that list-ilp scheduler does not crash due to SystemZ's current use +; of MVT::Untyped. + +define void @pr32723(i8) { +; CHECK: .text +BB: + br label %CF245 + +CF245: ; preds = %CF245, %BB + %Shuff57 = shufflevector <4 x i8> zeroinitializer, <4 x i8> zeroinitializer, <4 x i32> + %Cmp84 = icmp uge i8 %0, undef + br i1 %Cmp84, label %CF245, label %CF260 + +CF260: ; preds = %CF245 + %B156 = sdiv <4 x i8> %Shuff57, %Shuff57 + br label %CF255 + +CF255: ; preds = %CF255, %CF260 + %I186 = insertelement <4 x i8> %B156, i8 %0, i32 2 + br label %CF255 +} -- cgit v1.2.3