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llvm-mirror/test/CodeGen/SystemZ/list-ilp-crash.ll
Jonas Paulsson d401c2a29b [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

llvm-svn: 302649
2017-05-10 13:03:25 +00:00

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796 B
LLVM

; 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> <i32 0, i32 2, i32 4, i32 6>
%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
}