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Adding -verify-machineinstrs option to PowerPC tests Currently we have a number of tests that fail with -verify-machineinstrs. To detect this cases earlier we add the option to the testcases with the exception of tests that will currently fail with this option. PR 27456 keeps track of this failures. No code review, as discussed with Hal Finkel. llvm-svn: 277624
2016-08-04 02:17:35 +08:00
; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s
[SelectionDAG] Fix CombineToPreIndexedLoadStore O(n^2) behavior This patch consists of two parts: a performance fix in DAGCombiner.cpp and a correctness fix in SelectionDAG.cpp. The test case tests the bug that's uncovered by the performance fix, and fixed by the correctness fix. The performance fix keeps the containers required by the hasPredecessorHelper (which is a lazy DFS) and reuse them. Since hasPredecessorHelper is called in a loop, the overall efficiency reduced from O(n^2) to O(n), where n is the number of SDNodes. The correctness fix keeps iterating the neighbor list even if it's time to early return. It will return after finishing adding all neighbors to Worklist, so that no neighbors are discarded due to the original early return. llvm-svn: 259691
2016-02-04 04:58:55 +08:00
; CHECK-LABEL: TestFoo:
; CHECK: std
; CHECK: bl TestBar
; CHECK: stbu
; CHECK: std
; CHECK: blr
%StructA = type <{ i64, { i64, i64 }, { i64, i64 } }>
define void @TestFoo(%StructA* %this) {
%tmp = getelementptr inbounds %StructA, %StructA* %this, i64 0, i32 1
%tmp11 = getelementptr inbounds %StructA, %StructA* %this, i64 0, i32 1, i32 1
%tmp12 = bitcast { i64, i64 }* %tmp to i64**
store i64* %tmp11, i64** %tmp12
call void @TestBar()
%tmp13 = getelementptr inbounds %StructA, %StructA* %this, i64 0, i32 2, i32 1
store i64* %tmp13, i64** undef
%.cast.i.i.i = bitcast i64* %tmp13 to i8*
store i8 0, i8* %.cast.i.i.i
ret void
}
declare void @TestBar()