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Add Aarch64 ldst-opt test.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305951 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nirav Dave 2017-06-21 20:50:07 +00:00
parent 9500616f97
commit a625ee45de
1 changed files with 60 additions and 0 deletions
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60
test/CodeGen/AArch64/ldst-opt.ll
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@ -1608,3 +1608,63 @@ entry:
store <4 x double> zeroinitializer, <4 x double>* %p store <4 x double> zeroinitializer, <4 x double>* %p
ret void ret void
} }
; Verify that non-consecutive merges do not generate q0
define void @merge_multiple_128bit_stores(i64* %p) {
; CHECK-LABEL: merge_multiple_128bit_stores
; CHECK: // %entry
; NOSTRICTALIGN-NEXT: movi v[[REG:[0-9]]].2d, #0000000000000000
; NOSTRICTALIGN-NEXT: str q0, [x0]
; NOSTRICTALIGN-NEXT: stur q0, [x0, #24]
; NOSTRICTALIGN-NEXT: str q0, [x0, #48]
; STRICTALIGN-NEXT: stp xzr, xzr, [x0]
; STRICTALIGN-NEXT: stp xzr, xzr, [x0, #24]
; STRICTALIGN-NEXT: stp xzr, xzr, [x0, #48]
; CHECK-NEXT: ret
entry:
store i64 0, i64* %p
%p1 = getelementptr i64, i64* %p, i64 1
store i64 0, i64* %p1
%p3 = getelementptr i64, i64* %p, i64 3
store i64 0, i64* %p3
%p4 = getelementptr i64, i64* %p, i64 4
store i64 0, i64* %p4
%p6 = getelementptr i64, i64* %p, i64 6
store i64 0, i64* %p6
%p7 = getelementptr i64, i64* %p, i64 7
store i64 0, i64* %p7
ret void
}
; Verify that large stores generate stp q
define void @merge_multiple_128bit_stores_consec(i64* %p) {
; CHECK-LABEL: merge_multiple_128bit_stores_consec
; CHECK: // %entry
; NOSTRICTALIGN-NEXT: movi v[[REG:[0-9]]].2d, #0000000000000000
; NOSTRICTALIGN-NEXT: stp q[[REG]], q[[REG]], [x{{[0-9]+}}]
; NOSTRICTALIGN-NEXT: stp q[[REG]], q[[REG]], [x{{[0-9]+}}, #32]
; STRICTALIGN-NEXT: stp xzr, xzr, [x0]
; STRICTALIGN-NEXT: stp xzr, xzr, [x0, #16]
; STRICTALIGN-NEXT: stp xzr, xzr, [x0, #32]
; STRICTALIGN-NEXT: stp xzr, xzr, [x0, #48]
; CHECK-NEXT: ret
entry:
store i64 0, i64* %p
%p1 = getelementptr i64, i64* %p, i64 1
store i64 0, i64* %p1
%p2 = getelementptr i64, i64* %p, i64 2
store i64 0, i64* %p2
%p3 = getelementptr i64, i64* %p, i64 3
store i64 0, i64* %p3
%p4 = getelementptr i64, i64* %p, i64 4
store i64 0, i64* %p4
%p5 = getelementptr i64, i64* %p, i64 5
store i64 0, i64* %p5
%p6 = getelementptr i64, i64* %p, i64 6
store i64 0, i64* %p6
%p7 = getelementptr i64, i64* %p, i64 7
store i64 0, i64* %p7
ret void
}