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| author | Nirav Dave <niravd@google.com> | 2017-03-28 14:11:20 +0000 |
|---|---|---|
| committer | Nirav Dave <niravd@google.com> | 2017-03-28 14:11:20 +0000 |
| commit | 9b5563c52ca9412597b38c15b6f0c6225d95f8a1 (patch) | |
| tree | 3010320fe9616ab9a50f4bf1452e3cee1203abf1 /llvm/test | |
| parent | be8d7a32c209661085692c74924eb9bf42b23b57 (diff) | |
| download | bcm5719-llvm-9b5563c52ca9412597b38c15b6f0c6225d95f8a1.tar.gz bcm5719-llvm-9b5563c52ca9412597b38c15b6f0c6225d95f8a1.zip | |
[SDAG] Fix Stale SDNode usage in visitAND
Reorder CombineTo Calls to prevent potential use of deleted node.
Fixes PR32372.
Reviewers: jnspaulsson, RKSimon, uweigand, jonpa
Reviewed By: jonpa
Subscribers: jonpa, llvm-commits
Differential Revision: https://reviews.llvm.org/D31346
llvm-svn: 298920
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/SystemZ/pr32372.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/SystemZ/pr32372.ll b/llvm/test/CodeGen/SystemZ/pr32372.ll new file mode 100644 index 00000000000..c18e238fbaf --- /dev/null +++ b/llvm/test/CodeGen/SystemZ/pr32372.ll @@ -0,0 +1,31 @@ +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc %s -o - -mtriple=s390x-linux-gnu | FileCheck %s + +define void @pr32372(i8*) { +; CHECK-LABEL: pr32372: +; CHECK: # BB#0: # %BB +; CHECK-NEXT: llc %r1, 0(%r2) +; CHECK-NEXT: mvhhi 0(%r1), -3825 +; CHECK-NEXT: llill %r0, 0 +; CHECK-NEXT: dlr %r0, %r1 +; CHECK-NEXT: .LBB0_1: # %CF251 +; CHECK-NEXT: # =>This Inner Loop Header: Depth=1 +; CHECK-NEXT: j .LBB0_1 +BB: + %L = load i8, i8* %0 + store i16 -3825, i16* undef + %L5 = load i8, i8* %0 + %B9 = urem i8 %L5, %L + %I107 = insertelement <8 x i8> zeroinitializer, i8 %B9, i32 7 + %ZE141 = zext i8 %L5 to i16 + br label %CF251 + +CF251: ; preds = %CF258, %CF251, %BB + %Shuff217 = shufflevector <8 x i8> zeroinitializer, <8 x i8> %I107, <8 x i32> <i32 0, i32 2, i32 undef, i32 6, i32 8, i32 undef, i32 12, i32 14> + %Cmp227 = icmp sge i16 %ZE141, 0 + br i1 %Cmp227, label %CF251, label %CF258 + +CF258: ; preds = %CF251 + %Shuff230 = shufflevector <2 x i16> undef, <2 x i16> undef, <2 x i32> <i32 3, i32 1> + br label %CF251 +} |
