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author | Pirama Arumuga Nainar <pirama@google.com> | 2015-04-10 21:22:52 +0000 |
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committer | Gerrit Code Review <noreply-gerritcodereview@google.com> | 2015-04-10 21:23:04 +0000 |
commit | 31195f0bdca6ee2a5e72d07edf13e1d81206d949 (patch) | |
tree | 1b2c9792582e12f5af0b1512e3094425f0dc0df9 /test/CodeGen/X86/phielim-split.ll | |
parent | c75239e6119d0f9a74c57099d91cbc9bde56bf33 (diff) | |
parent | 4c5e43da7792f75567b693105cc53e3f1992ad98 (diff) | |
download | external_llvm-31195f0bdca6ee2a5e72d07edf13e1d81206d949.zip external_llvm-31195f0bdca6ee2a5e72d07edf13e1d81206d949.tar.gz external_llvm-31195f0bdca6ee2a5e72d07edf13e1d81206d949.tar.bz2 |
Merge "Update aosp/master llvm for rebase to r233350"
Diffstat (limited to 'test/CodeGen/X86/phielim-split.ll')
-rw-r--r-- | test/CodeGen/X86/phielim-split.ll | 43 |
1 files changed, 40 insertions, 3 deletions
diff --git a/test/CodeGen/X86/phielim-split.ll b/test/CodeGen/X86/phielim-split.ll index aa47735..423ef04 100644 --- a/test/CodeGen/X86/phielim-split.ll +++ b/test/CodeGen/X86/phielim-split.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -verify-machineinstrs | FileCheck %s +; RUN: llc < %s -verify-machineinstrs -no-phi-elim-live-out-early-exit | FileCheck %s target triple = "x86_64-apple-macosx10.8.0" ; The critical edge from for.cond to if.end2 should be split to avoid injecting @@ -18,8 +18,8 @@ entry: for.cond: ; preds = %entry, %for.cond %p.addr.0 = phi i8* [ %incdec.ptr, %for.cond ], [ %p, %entry ] - %incdec.ptr = getelementptr inbounds i8* %p.addr.0, i64 1 - %0 = load i8* %p.addr.0, align 1 + %incdec.ptr = getelementptr inbounds i8, i8* %p.addr.0, i64 1 + %0 = load i8, i8* %p.addr.0, align 1 %tobool = icmp eq i8 %0, 0 br i1 %tobool, label %for.cond, label %if.end2 @@ -28,3 +28,40 @@ if.end2: ; preds = %for.cond, %entry %add = add nsw i32 %r.0, %b ret i32 %add } + +; CHECK: split_live_out +; CHECK: %while.body +; CHECK: cmp +; CHECK-NEXT: ja +define i8* @split_live_out(i32 %value, i8* %target) nounwind uwtable readonly ssp { +entry: + %cmp10 = icmp ugt i32 %value, 127 + br i1 %cmp10, label %while.body.preheader, label %while.end + +while.body.preheader: ; preds = %entry + br label %while.body + +while.body: ; preds = %while.body.preheader, %while.body + %target.addr.012 = phi i8* [ %incdec.ptr, %while.body ], [ %target, %while.body.preheader ] + %value.addr.011 = phi i32 [ %shr, %while.body ], [ %value, %while.body.preheader ] + %or = or i32 %value.addr.011, 128 + %conv = trunc i32 %or to i8 + store i8 %conv, i8* %target.addr.012, align 1 + %shr = lshr i32 %value.addr.011, 7 + %incdec.ptr = getelementptr inbounds i8, i8* %target.addr.012, i64 1 + %cmp = icmp ugt i32 %value.addr.011, 16383 + br i1 %cmp, label %while.body, label %while.end.loopexit + +while.end.loopexit: ; preds = %while.body + %incdec.ptr.lcssa = phi i8* [ %incdec.ptr, %while.body ] + %shr.lcssa = phi i32 [ %shr, %while.body ] + br label %while.end + +while.end: ; preds = %while.end.loopexit, %entry + %target.addr.0.lcssa = phi i8* [ %target, %entry ], [ %incdec.ptr.lcssa, %while.end.loopexit ] + %value.addr.0.lcssa = phi i32 [ %value, %entry ], [ %shr.lcssa, %while.end.loopexit ] + %conv1 = trunc i32 %value.addr.0.lcssa to i8 + store i8 %conv1, i8* %target.addr.0.lcssa, align 1 + %incdec.ptr3 = getelementptr inbounds i8, i8* %target.addr.0.lcssa, i64 1 + ret i8* %incdec.ptr3 +} |