Chris Lattner 3d28b1b35b Teach instcombine 4 new xforms: ... (add (sext x), cst) --> (sext (add x, cst')) (add (sext x), (sext y)) --> (sext (add int x, y)) (add double (sitofp x), fpcst) --> (sitofp (add int x, intcst)) (add double (sitofp x), (sitofp y)) --> (sitofp (add int x, y)) This generally reduces conversions. For example MiBench/telecomm-gsm gets these simplifications: HACK2: %tmp67.i142.i.i = sext i16 %tmp6.i141.i.i to i32 ; <i32> [#uses=1] %tmp23.i139.i.i = sext i16 %tmp2.i138.i.i to i32 ; <i32> [#uses=1] %tmp8.i143.i.i = add i32 %tmp67.i142.i.i, %tmp23.i139.i.i ; <i32> [#uses=3] HACK2: %tmp67.i121.i.i = sext i16 %tmp6.i120.i.i to i32 ; <i32> [#uses=1] %tmp23.i118.i.i = sext i16 %tmp2.i117.i.i to i32 ; <i32> [#uses=1] %tmp8.i122.i.i = add i32 %tmp67.i121.i.i, %tmp23.i118.i.i ; <i32> [#uses=3] HACK2: %tmp67.i.i190.i = sext i16 %tmp6.i.i189.i to i32 ; <i32> [#uses=1] %tmp23.i.i187.i = sext i16 %tmp2.i.i186.i to i32 ; <i32> [#uses=1] %tmp8.i.i191.i = add i32 %tmp67.i.i190.i, %tmp23.i.i187.i ; <i32> [#uses=3] HACK2: %tmp67.i173.i.i.i = sext i16 %tmp6.i172.i.i.i to i32 ; <i32> [#uses=1] %tmp23.i170.i.i.i = sext i16 %tmp2.i169.i.i.i to i32 ; <i32> [#uses=1] %tmp8.i174.i.i.i = add i32 %tmp67.i173.i.i.i, %tmp23.i170.i.i.i ; <i32> [#uses=3] HACK2: %tmp67.i152.i.i.i = sext i16 %tmp6.i151.i.i.i to i32 ; <i32> [#uses=1] %tmp23.i149.i.i.i = sext i16 %tmp2.i148.i.i.i to i32 ; <i32> [#uses=1] %tmp8.i153.i.i.i = add i32 %tmp67.i152.i.i.i, %tmp23.i149.i.i.i ; <i32> [#uses=3] HACK2: %tmp67.i.i.i.i = sext i16 %tmp6.i.i.i.i to i32 ; <i32> [#uses=1] %tmp23.i.i5.i.i = sext i16 %tmp2.i.i.i.i to i32 ; <i32> [#uses=1] %tmp8.i.i7.i.i = add i32 %tmp67.i.i.i.i, %tmp23.i.i5.i.i ; <i32> [#uses=3] This also fixes a bug in ComputeNumSignBits handling select and makes it more aggressive with and/or. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51302 91177308-0d34-0410-b5e6-96231b3b80d8		2008-05-20 05:46:13 +00:00
..
Analysis	Fix this test. It was testing broken behavior in that it required ADCE to eliminate	2008-05-16 04:25:09 +00:00
Archive	Delete the svn:executable property on these files, which aren't executable.	2007-07-23 19:26:08 +00:00
Assembler	returning an empty multiple return list is not valid.	2008-04-23 05:29:14 +00:00
Bindings/Ocaml	Expose ExecutionEngine::getTargetData() to c and ocaml bindings.	2008-03-27 00:27:14 +00:00
Bitcode	fix this test.	2008-02-17 00:15:25 +00:00
BugPoint	Remove llvm-upgrade	2008-02-17 00:15:09 +00:00
C++Frontend	Remove the S92 code, which really has nothing to do	2008-05-15 22:23:54 +00:00
CFrontend	Check that always_inline functions are inlined	2008-05-19 16:44:44 +00:00
CodeGen	Run vortex-bug as x86-64, which is what the original bug was triggered on.	2008-05-20 00:54:39 +00:00
DebugInfo	Remove llvm-upgrade and update tests.	2008-03-10 07:21:50 +00:00
ExecutionEngine	rename *.llx -> *.ll, last batch.	2008-04-19 22:32:52 +00:00
Feature	Update test	2008-04-25 17:54:21 +00:00
FrontendAda	Testcase for gimplify_expr crash caused by an	2008-01-15 19:55:41 +00:00
FrontendObjC	Removing.	2008-05-06 23:56:22 +00:00
Integer	refactor handling of symbolic constant folding, picking up	2008-04-19 21:58:19 +00:00
lib	Fix tests due to llvm2cpp move to llc target	2008-04-23 22:41:53 +00:00
Linker	Update old-style syntax in some "not grep" tests.	2008-05-01 23:50:07 +00:00
LLVMC	Check if llvm-gcc is available before running tests. Patch by Matthijs Kooijman!	2008-05-14 16:32:44 +00:00
Other	Fix tests due to llvm2cpp move to llc target	2008-04-23 22:41:53 +00:00
Scripts	Add a test script for counting lines. This can be used instead of the	2007-08-10 15:07:05 +00:00
TableGen	Rename MRegisterInfo to TargetRegisterInfo.	2008-02-10 18:45:23 +00:00
Transforms	Teach instcombine 4 new xforms:	2008-05-20 05:46:13 +00:00
Verifier	Revert the change from r51157 in	2008-05-16 00:16:32 +00:00
Makefile	Add EXTRA_OPTIONS on the llvmgxx command line.	2008-04-24 17:59:03 +00:00
Makefile.tests	Failure.sh is dead, remove it.	2007-04-21 20:46:55 +00:00
TestRunner.sh	Avoid an infinite loop when TestRunner.sh is run outside of the test dir.	2007-05-18 02:06:03 +00:00