Chris Lattner e99c623e75 Throttle back tail duplication to avoid creating really ugly sequences of code. ... For Transforms/TailDup/if-tail-dup.ll, f.e., it produces: _foo: movl 8(%esp), %eax movl 4(%esp), %ecx testl $1, %ecx je LBB1_2 #cond_next LBB1_1: #cond_true movl $1, (%eax) LBB1_2: #cond_next testl $2, %ecx je LBB1_4 #cond_next10 LBB1_3: #cond_true6 movl $1, 4(%eax) LBB1_4: #cond_next10 testl $4, %ecx je LBB1_6 #cond_next18 LBB1_5: #cond_true14 movl $1, 8(%eax) LBB1_6: #cond_next18 testl $8, %ecx je LBB1_8 #return LBB1_7: #cond_true22 movl $1, 12(%eax) ret LBB1_8: #return ret instead of: _foo: movl 4(%esp), %eax testl $2, %eax sete %cl movl 8(%esp), %edx testl $1, %eax je LBB1_2 #cond_next LBB1_1: #cond_true movl $1, (%edx) testb %cl, %cl jne LBB1_4 #cond_next10 jmp LBB1_3 #cond_true6 LBB1_2: #cond_next testb %cl, %cl jne LBB1_4 #cond_next10 LBB1_3: #cond_true6 movl $1, 4(%edx) testl $4, %eax je LBB1_6 #cond_next18 jmp LBB1_5 #cond_true14 LBB1_4: #cond_next10 testl $4, %eax je LBB1_6 #cond_next18 LBB1_5: #cond_true14 movl $1, 8(%edx) testl $8, %eax je LBB1_8 #return jmp LBB1_7 #cond_true22 LBB1_6: #cond_next18 testl $8, %eax je LBB1_8 #return LBB1_7: #cond_true22 movl $1, 12(%edx) ret LBB1_8: #return ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30158 91177308-0d34-0410-b5e6-96231b3b80d8		2006-09-07 21:30:15 +00:00
..
Hello	eliminate RegisterOpt. It does the same thing as RegisterPass.	2006-08-27 22:42:52 +00:00
Instrumentation	simplify AnalysisGroup registration, eliminating one typeid call.	2006-08-28 00:42:29 +00:00
IPO	Make ArgumentPromotion handle recursive functions that pass pointers in their recursive calls.	2006-09-02 21:19:44 +00:00
Scalar	Throttle back tail duplication to avoid creating really ugly sequences of code.	2006-09-07 21:30:15 +00:00
Utils	Fix Duraid's changes to work when TLI is null. This fixes the failing	2006-09-05 17:48:07 +00:00
ExprTypeConvert.cpp	Remove dead stuff	2006-05-12 23:32:01 +00:00
LevelRaise.cpp	eliminate RegisterOpt. It does the same thing as RegisterPass.	2006-08-27 22:42:52 +00:00
Makefile
TransformInternals.cpp
TransformInternals.h