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| author | Evan Cheng <evan.cheng@apple.com> | 2011-01-28 02:19:21 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2011-01-28 02:19:21 +0000 |
| commit | 40f64cb0de40802ddd2f928b62e9564e1e721ff3 (patch) | |
| tree | e94f9f5d77d86efd85ac2d6f0ad8a3ced55ca5ee /test/CodeGen/X86/loop-blocks.ll | |
| parent | c3a20bab7571ff95525252c379198e67b65d0f1d (diff) | |
| download | external_llvm-40f64cb0de40802ddd2f928b62e9564e1e721ff3.tar.gz external_llvm-40f64cb0de40802ddd2f928b62e9564e1e721ff3.tar.bz2 external_llvm-40f64cb0de40802ddd2f928b62e9564e1e721ff3.zip | |
- Stop simplifycfg from duplicating "ret" instructions into unconditional
branches. PR8575, rdar://5134905, rdar://8911460.
- Allow codegen tail duplication to dup small return blocks after register
allocation is done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124462 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/loop-blocks.ll')
| -rw-r--r-- | test/CodeGen/X86/loop-blocks.ll | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/test/CodeGen/X86/loop-blocks.ll b/test/CodeGen/X86/loop-blocks.ll index 354d082069..faba630071 100644 --- a/test/CodeGen/X86/loop-blocks.ll +++ b/test/CodeGen/X86/loop-blocks.ll @@ -70,6 +70,7 @@ exit: ; Same as slightly_more_involved, but block_a is now a CFG diamond with ; fallthrough edges which should be preserved. +; "callq block_a_merge_func" is tail duped. ; CHECK: yet_more_involved: ; CHECK: jmp .LBB2_1 @@ -78,12 +79,12 @@ exit: ; CHECK-NEXT: callq bar99 ; CHECK-NEXT: callq get ; CHECK-NEXT: cmpl $2999, %eax -; CHECK-NEXT: jg .LBB2_6 -; CHECK-NEXT: callq block_a_true_func -; CHECK-NEXT: jmp .LBB2_7 -; CHECK-NEXT: .LBB2_6: +; CHECK-NEXT: jle .LBB2_5 ; CHECK-NEXT: callq block_a_false_func -; CHECK-NEXT: .LBB2_7: +; CHECK-NEXT: callq block_a_merge_func +; CHECK-NEXT: jmp .LBB2_1 +; CHECK-NEXT: .LBB2_5: +; CHECK-NEXT: callq block_a_true_func ; CHECK-NEXT: callq block_a_merge_func ; CHECK-NEXT: .LBB2_1: ; CHECK-NEXT: callq body |