Chris Lattner 476769498e implement an optimization to codegen c ? 1.0 : 2.0 as load { 2.0, 1.0 } + c*4. ... For 2009-03-07-FPConstSelect.ll we now produce: _f: xorl %eax, %eax testl %edi, %edi movl $4, %ecx cmovne %rax, %rcx leaq LCPI1_0(%rip), %rax movss (%rcx,%rax), %xmm0 ret previously we produced: _f: subl $4, %esp cmpl $0, 8(%esp) movss LCPI1_0, %xmm0 je LBB1_2 ## entry LBB1_1: ## entry movss LCPI1_1, %xmm0 LBB1_2: ## entry movss %xmm0, (%esp) flds (%esp) addl $4, %esp ret on PPC the code also improves to: _f: cntlzw r2, r3 srwi r2, r2, 5 li r3, lo16(LCPI1_0) slwi r2, r2, 2 addis r3, r3, ha16(LCPI1_0) lfsx f1, r3, r2 blr from: _f: li r2, lo16(LCPI1_1) cmplwi cr0, r3, 0 addis r2, r2, ha16(LCPI1_1) beq cr0, LBB1_2 ; entry LBB1_1: ; entry li r2, lo16(LCPI1_0) addis r2, r2, ha16(LCPI1_0) LBB1_2: ; entry lfs f1, 0(r2) blr This also improves the existing pic-cpool case from: foo: subl $12, %esp call .Lllvm$1.$piclabel .Lllvm$1.$piclabel: popl %eax addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$1.$piclabel], %eax cmpl $0, 16(%esp) movsd .LCPI1_0@GOTOFF(%eax), %xmm0 je .LBB1_2 # entry .LBB1_1: # entry movsd .LCPI1_1@GOTOFF(%eax), %xmm0 .LBB1_2: # entry movsd %xmm0, (%esp) fldl (%esp) addl $12, %esp ret to: foo: call .Lllvm$1.$piclabel .Lllvm$1.$piclabel: popl %eax addl $_GLOBAL_OFFSET_TABLE_ + [.-.Lllvm$1.$piclabel], %eax xorl %ecx, %ecx cmpl $0, 4(%esp) movl $8, %edx cmovne %ecx, %edx fldl .LCPI1_0@GOTOFF(%eax,%edx) ret This triggers a few dozen times in spec FP 2000. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66358 91177308-0d34-0410-b5e6-96231b3b80d8		2009-03-08 01:51:30 +00:00
..
Analysis	Update this test for the LoopInfo::print changes.	2009-02-27 00:17:49 +00:00
Archive	sabre brings to my attention that the 'tr' suffix is also obsolete	2008-05-20 21:00:03 +00:00
Assembler	Fix a pretty awesome bug that only happened in a strange case with anonymous	2009-03-01 00:53:13 +00:00
Bindings/Ocaml	tweak this to accept asmprinter changes. I have no way to verify this, hopefully	2009-03-01 01:28:40 +00:00
Bitcode	fix a bitcode reader bug where it can't handle extractelement correctly:	2009-02-03 02:11:28 +00:00
BugPoint	Remove accidental check-ins in r65960. :-(	2009-03-03 19:25:16 +00:00
CodeGen	implement an optimization to codegen c ? 1.0 : 2.0 as load { 2.0, 1.0 } + c*4.	2009-03-08 01:51:30 +00:00
DebugInfo	Ignore the debug info intrinsics when looking for dependency through basic block.	2009-03-05 01:45:43 +00:00
ExecutionEngine	This is case is to uncover the bug in IntrinsicLowering.cpp,	2009-01-30 08:59:51 +00:00
Feature	Reimplement the old and horrible bison parser for .ll files with a nice	2009-01-02 07:01:27 +00:00
FrontendAda	Check that records with a known constant size are not	2009-02-25 18:10:49 +00:00
FrontendC	Functions marked malloc are noalias return.	2009-03-01 16:19:31 +00:00
FrontendC++	- Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emit	2009-02-24 02:35:30 +00:00
FrontendFortran	Testcase for PR2437.	2009-02-09 09:41:49 +00:00
FrontendObjC	And now, not so elegant, test case...	2009-02-17 22:48:18 +00:00
FrontendObjC++	This is an objective-c test, not an objective-c++ one.	2008-10-06 18:42:48 +00:00
Integer	alignment of 0 is not valid.	2009-01-05 08:14:35 +00:00
lib	Trailing whitespace.	2009-03-06 12:21:40 +00:00
Linker	Reimplement the old and horrible bison parser for .ll files with a nice	2009-01-02 07:01:27 +00:00
LLVMC	Add a comment.	2009-03-06 17:59:58 +00:00
Other	Update another test for the LoopInfo::print changes.	2009-02-27 00:20:19 +00:00
Scripts	simplify shell syntax to work better on solaris, patch by	2008-06-25 16:03:42 +00:00
TableGen	Fun x86 encoding tricks: when adding an immediate value of 128,	2008-10-17 01:33:43 +00:00
Transforms	fix a serious pessimization that Tron on IRC pointed out where we would	2009-03-07 23:32:02 +00:00
Verifier	Reimplement the old and horrible bison parser for .ll files with a nice	2009-01-02 07:01:27 +00:00
Makefile	Trailing whitespace.	2009-03-06 12:25:56 +00:00
Makefile.tests
TestRunner.sh	Fix a bashism in TestRunner.sh.	2008-07-28 18:41:03 +00:00