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| author | Evan Cheng <evan.cheng@apple.com> | 2009-11-07 04:04:34 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-11-07 04:04:34 +0000 |
| commit | d457e6e9a5cd975baf4d1f0578382ab8373e6153 (patch) | |
| tree | 8d10c6d1e85c44f0c181437125831bcd0be53c81 /test | |
| parent | 78e5c1140adc926e7c004748c1c912bfddd875b4 (diff) | |
| download | external_llvm-d457e6e9a5cd975baf4d1f0578382ab8373e6153.zip external_llvm-d457e6e9a5cd975baf4d1f0578382ab8373e6153.tar.gz external_llvm-d457e6e9a5cd975baf4d1f0578382ab8373e6153.tar.bz2 | |
Refactor code. Fix a potential missing check. Teach isIdentical() about tLDRpci_pic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86330 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/Thumb/machine-licm.ll | 41 | ||||
| -rw-r--r-- | test/CodeGen/Thumb2/machine-licm.ll | 1 |
2 files changed, 42 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb/machine-licm.ll b/test/CodeGen/Thumb/machine-licm.ll new file mode 100644 index 0000000..dae1412 --- /dev/null +++ b/test/CodeGen/Thumb/machine-licm.ll @@ -0,0 +1,41 @@ +; RUN: llc < %s -mtriple=thumb-apple-darwin -relocation-model=pic -disable-fp-elim | FileCheck %s +; rdar://7353541 +; rdar://7354376 + +; The generated code is no where near ideal. It's not recognizing the two +; constantpool entries being loaded can be merged into one. + +@GV = external global i32 ; <i32*> [#uses=2] + +define arm_apcscc void @t(i32* nocapture %vals, i32 %c) nounwind { +entry: +; CHECK: t: + %0 = icmp eq i32 %c, 0 ; <i1> [#uses=1] + br i1 %0, label %return, label %bb.nph + +bb.nph: ; preds = %entry +; CHECK: BB#1 +; CHECK: ldr.n r2, LCPI1_0 +; CHECK: add r2, pc +; CHECK: ldr r{{[0-9]+}}, [r2] +; CHECK: LBB1_2 +; CHECK: LCPI1_0: +; CHECK-NOT: LCPI1_1: +; CHECK: .section + %.pre = load i32* @GV, align 4 ; <i32> [#uses=1] + br label %bb + +bb: ; preds = %bb, %bb.nph + %1 = phi i32 [ %.pre, %bb.nph ], [ %3, %bb ] ; <i32> [#uses=1] + %i.03 = phi i32 [ 0, %bb.nph ], [ %4, %bb ] ; <i32> [#uses=2] + %scevgep = getelementptr i32* %vals, i32 %i.03 ; <i32*> [#uses=1] + %2 = load i32* %scevgep, align 4 ; <i32> [#uses=1] + %3 = add nsw i32 %1, %2 ; <i32> [#uses=2] + store i32 %3, i32* @GV, align 4 + %4 = add i32 %i.03, 1 ; <i32> [#uses=2] + %exitcond = icmp eq i32 %4, %c ; <i1> [#uses=1] + br i1 %exitcond, label %return, label %bb + +return: ; preds = %bb, %entry + ret void +} diff --git a/test/CodeGen/Thumb2/machine-licm.ll b/test/CodeGen/Thumb2/machine-licm.ll index 65e1369..912939b 100644 --- a/test/CodeGen/Thumb2/machine-licm.ll +++ b/test/CodeGen/Thumb2/machine-licm.ll @@ -1,5 +1,6 @@ ; RUN: llc < %s -mtriple=thumbv7-apple-darwin -relocation-model=pic -disable-fp-elim | FileCheck %s ; rdar://7353541 +; rdar://7354376 ; The generated code is no where near ideal. It's not recognizing the two ; constantpool entries being loaded can be merged into one. |