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Revert "ARMLoadStoreOpt: Merge subs/adds into LDRD/STRD; Factor out common code"

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This reverts commit r241928. This caused http://llvm.org/PR24190

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242734 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthias Braun
2015-07-20 23:17:16 +00:00
parent 2271d686de
commit 8f41ef5e94
2 changed files with 171 additions and 239 deletions
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56
test/CodeGen/ARM/ldrd.ll
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@@ -112,10 +112,10 @@ entry:
}
; CHECK-LABEL: strd_spill_ldrd_reload:
; A8: strd r1, r0, [sp, #-8]!
; M3: strd r1, r0, [sp, #-8]!
; BASIC: strd r1, r0, [sp, #-8]!
; GREEDY: strd r0, r1, [sp, #-8]!
; A8: strd r1, r0, [sp]
; M3: strd r1, r0, [sp]
; BASIC: strd r1, r0, [sp]
; GREEDY: strd r0, r1, [sp]
; CHECK: @ InlineAsm Start
; CHECK: @ InlineAsm End
; A8: ldrd r2, r1, [sp]
@@ -131,53 +131,5 @@ define void @strd_spill_ldrd_reload(i32 %v0, i32 %v1) {
ret void
}
declare void @extfunc2(i32*, i32, i32)
; CHECK-LABEL: ldrd_postupdate_dec:
; CHECK: ldrd r1, r2, [r0], #-8
; CHECK-NEXT: bl{{x?}} _extfunc
define void @ldrd_postupdate_dec(i32* %p0) {
%p0.1 = getelementptr i32, i32* %p0, i32 1
%v0 = load i32, i32* %p0
%v1 = load i32, i32* %p0.1
%p1 = getelementptr i32, i32* %p0, i32 -2
call void @extfunc2(i32* %p1, i32 %v0, i32 %v1)
ret void
}
; CHECK-LABEL: ldrd_postupdate_inc:
; CHECK: ldrd r1, r2, [r0], #8
; CHECK-NEXT: bl{{x?}} _extfunc
define void @ldrd_postupdate_inc(i32* %p0) {
%p0.1 = getelementptr i32, i32* %p0, i32 1
%v0 = load i32, i32* %p0
%v1 = load i32, i32* %p0.1
%p1 = getelementptr i32, i32* %p0, i32 2
call void @extfunc2(i32* %p1, i32 %v0, i32 %v1)
ret void
}
; CHECK-LABEL: strd_postupdate_dec:
; CHECK: strd r1, r2, [r0], #-8
; CHECK-NEXT: bx lr
define i32* @strd_postupdate_dec(i32* %p0, i32 %v0, i32 %v1) {
%p0.1 = getelementptr i32, i32* %p0, i32 1
store i32 %v0, i32* %p0
store i32 %v1, i32* %p0.1
%p1 = getelementptr i32, i32* %p0, i32 -2
ret i32* %p1
}
; CHECK-LABEL: strd_postupdate_inc:
; CHECK: strd r1, r2, [r0], #8
; CHECK-NEXT: bx lr
define i32* @strd_postupdate_inc(i32* %p0, i32 %v0, i32 %v1) {
%p0.1 = getelementptr i32, i32* %p0, i32 1
store i32 %v0, i32* %p0
store i32 %v1, i32* %p0.1
%p1 = getelementptr i32, i32* %p0, i32 2
ret i32* %p1
}
declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind
declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind