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| author | Sam Parker <sam.parker@arm.com> | 2018-01-02 10:19:01 +0000 |
|---|---|---|
| committer | Sam Parker <sam.parker@arm.com> | 2018-01-02 10:19:01 +0000 |
| commit | 3570c554b5a69618480b74aadc1da069fce83fc6 (patch) | |
| tree | 0df511557c8baf3bf91f66d262d114195b8c2630 /llvm | |
| parent | 2dea5e0f3cad11a4b4a2e973fdc846bacd7f2ed1 (diff) | |
| download | bcm5719-llvm-3570c554b5a69618480b74aadc1da069fce83fc6.tar.gz bcm5719-llvm-3570c554b5a69618480b74aadc1da069fce83fc6.zip | |
[DAGCombine] Fix for PR35765
Remove the acceptance of ANY_EXTEND nodes while trying to move and
nodes back to loads.
Bugzilla: https://bugs.llvm.org/show_bug.cgi?id=35765
Differential Revision: https://reviews.llvm.org/D41625
llvm-svn: 321641
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 1 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/pr35765.ll | 3 |
2 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 3218dce8f57..5843f86a842 100644 --- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -3850,7 +3850,6 @@ bool DAGCombiner::SearchForAndLoads(SDNode *N, return false; } case ISD::ZERO_EXTEND: - case ISD::ANY_EXTEND: case ISD::AssertZext: { unsigned ActiveBits = Mask->getAPIntValue().countTrailingOnes(); EVT ExtVT = EVT::getIntegerVT(*DAG.getContext(), ActiveBits); diff --git a/llvm/test/CodeGen/X86/pr35765.ll b/llvm/test/CodeGen/X86/pr35765.ll index 1b78a4cd392..4d097459e33 100644 --- a/llvm/test/CodeGen/X86/pr35765.ll +++ b/llvm/test/CodeGen/X86/pr35765.ll @@ -17,8 +17,9 @@ define void @PR35765() { ; CHECK-NEXT: movzwl {{.*}}(%rip), %ecx ; CHECK-NEXT: movzwl {{.*}}(%rip), %edx ; CHECK-NEXT: notl %edx +; CHECK-NEXT: orl $63488, %edx # imm = 0xF800 +; CHECK-NEXT: movzwl %dx, %edx ; CHECK-NEXT: orl %ecx, %edx -; CHECK-NEXT: orl $-2048, %edx # imm = 0xF800 ; CHECK-NEXT: xorl %eax, %edx ; CHECK-NEXT: movslq %edx, %rax ; CHECK-NEXT: movq %rax, {{.*}}(%rip) |
