From 417fca86c4a1c53afeb363190450c2d05e434d2f Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Fri, 28 Jan 2011 02:19:21 +0000 Subject: - 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. llvm-svn: 124462 --- llvm/test/CodeGen/X86/loop-blocks.ll | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'llvm/test/CodeGen/X86/loop-blocks.ll') diff --git a/llvm/test/CodeGen/X86/loop-blocks.ll b/llvm/test/CodeGen/X86/loop-blocks.ll index 354d0820697..faba6300712 100644 --- a/llvm/test/CodeGen/X86/loop-blocks.ll +++ b/llvm/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 -- cgit v1.2.3