Chris Lattner 3057944738 Legalize is no longer limited to cleverness with just constant shift amounts. ... Allow it to be clever when possible and fall back to the gross code when needed. This allows us to compile: long long foo1(long long X, int C) { return X << (C|32); } long long foo2(long long X, int C) { return X << (C&~32); } to: _foo1: rlwinm r2, r5, 0, 27, 31 slw r3, r4, r2 li r4, 0 blr .globl _foo2 .align 4 _foo2: rlwinm r2, r5, 0, 27, 25 subfic r5, r2, 32 slw r3, r3, r2 srw r5, r4, r5 or r3, r3, r5 slw r4, r4, r2 blr instead of: _foo1: ori r2, r5, 32 subfic r5, r2, 32 addi r6, r2, -32 srw r5, r4, r5 slw r3, r3, r2 slw r6, r4, r6 or r3, r3, r5 slw r4, r4, r2 or r3, r3, r6 blr .globl _foo2 .align 4 _foo2: rlwinm r2, r5, 0, 27, 25 subfic r5, r2, 32 addi r6, r2, -32 srw r5, r4, r5 slw r3, r3, r2 slw r6, r4, r6 or r3, r3, r5 slw r4, r4, r2 or r3, r3, r6 blr llvm-svn: 30507		2006-09-20 03:47:40 +00:00
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Analysis	Explain change with a comment.	2006-09-17 17:51:00 +00:00
AsmParser	Added some eye-candy for Subtarget type checking	2006-09-17 20:25:45 +00:00
Bytecode	Small fixes for supporting dll* linkage types	2006-09-17 13:06:18 +00:00
CodeGen	Expand 64-bit shifts more optimally if we know that the high bit of the	2006-09-20 03:38:48 +00:00
Debugger	For PR797:	2006-08-25 17:43:11 +00:00
ExecutionEngine	Unbreak the JIT	2006-09-15 04:56:11 +00:00
Linker	Adding dllimport, dllexport and external weak linkage types.	2006-09-14 18:23:27 +00:00
Support	Instantiate Statistic<> in one place, not in every .o file that uses it.	2006-08-30 04:17:00 +00:00
System	Use new config.h macro	2006-09-14 06:21:59 +00:00
Target	Legalize is no longer limited to cleverness with just constant shift amounts.	2006-09-20 03:47:40 +00:00
Transforms	Back out Chris' last set of changes. This breaks 177.mesa and povray somehow.	2006-09-20 01:39:40 +00:00
VMCore	add a helper method	2006-09-18 04:54:57 +00:00
Makefile	Make some changes suggested by Chris:	2006-05-17 22:55:35 +00:00