JF Bastien 8fc760cbe8 ARM FastISel integer sext/zext improvements ... My recent ARM FastISel patch exposed this bug: http://llvm.org/bugs/show_bug.cgi?id=16178 The root cause is that it can't select integer sext/zext pre-ARMv6 and asserts out. The current integer sext/zext code doesn't handle other cases gracefully either, so this patch makes it handle all sext and zext from i1/i8/i16 to i8/i16/i32, with and without ARMv6, both in Thumb and ARM mode. This should fix the bug as well as make FastISel faster because it bails to SelectionDAG less often. See fastisel-ext.patch for this. fastisel-ext-tests.patch changes current tests to always use reg-imm AND for 8-bit zext instead of UXTB. This simplifies code since it is supported on ARMv4t and later, and at least on A15 both should perform exactly the same (both have exec 1 uop 1, type I). 2013-05-31-char-shift-crash.ll is a bitcode version of the above bug 16178 repro. fast-isel-ext.ll tests all sext/zext combinations that ARM FastISel should now handle. Note that my ARM FastISel enabling patch was reverted due to a separate failure when dealing with MCJIT, I'll fix this second failure and then turn FastISel on again for non-iOS ARM targets. I've tested "make check-all" on my x86 box, and "lnt test-suite" on A15 hardware. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183551 91177308-0d34-0410-b5e6-96231b3b80d8		2013-06-07 20:10:37 +00:00
..
AArch64	Change how we iterate over relocations on ELF.	2013-05-30 03:05:14 +00:00
ARM	ARM FastISel integer sext/zext improvements	2013-06-07 20:10:37 +00:00
CPP
Generic	Drop @llvm.annotation and @llvm.ptr.annotation intrinsics during codegen.	2013-05-21 14:37:16 +00:00
Hexagon	Hexagon: Pass to replace tranfer/copy instructions into combine instruction	2013-05-14 18:54:06 +00:00
Inputs	Revert "Adding DIImportedModules to DIScopes."	2013-03-28 02:44:59 +00:00
MBlaze
Mips	Teach AsmPrinter how to print odd constants.	2013-06-07 18:36:03 +00:00
MSP430	DAGCombiner: Simplify inverted bit tests	2013-05-08 06:44:42 +00:00
NVPTX	[NVPTX] Re-enable support for virtual registers in the final output	2013-05-31 12:14:49 +00:00
PowerPC	Change how we iterate over relocations on ELF.	2013-05-30 03:05:14 +00:00
R600	R600: Add a pass that merge Vector Register	2013-06-05 21:38:04 +00:00
SI
SPARC	Fix a typo in asm string of BP* family of instructions. With this fix	2013-06-07 17:46:57 +00:00
SystemZ	[SystemZ] Don't use LOAD and STORE REVERSED for volatile accesses	2013-05-31 13:25:22 +00:00
Thumb	LocalStackSlotAllocation improvements	2013-04-30 20:04:37 +00:00
Thumb2	Cortex-R5 can issue Thumb2 integer division instructions.	2013-06-04 22:52:09 +00:00
X86	Teach AsmPrinter how to print odd constants.	2013-06-07 18:36:03 +00:00
XCore	[XCore] Fix handling of functions where only the LR is spilled.	2013-05-09 16:43:42 +00:00