Evan Cheng 44be1a8d66 Enable machine sinking critical edge splitting. e.g. ... define double @foo(double %x, double %y, i1 %c) nounwind { %a = fdiv double %x, 3.2 %z = select i1 %c, double %a, double %y ret double %z } Was: _foo: divsd LCPI0_0(%rip), %xmm0 testb $1, %dil jne LBB0_2 movaps %xmm1, %xmm0 LBB0_2: ret Now: _foo: testb $1, %dil je LBB0_2 divsd LCPI0_0(%rip), %xmm0 ret LBB0_2: movaps %xmm1, %xmm0 ret This avoids the divsd when early exit is taken. rdar://8454886 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114372 91177308-0d34-0410-b5e6-96231b3b80d8		2010-09-20 22:52:00 +00:00
..
Alpha
ARM	Simplify ARM callee-saved register handling by removing the distinction	2010-09-20 19:32:20 +00:00
Blackfin
CBackend
CellSPU	Change SPU register re-interpretations from OR to COPY_TO_REGCLASS instruction.	2010-09-16 12:29:33 +00:00
CPP
Generic
MBlaze
Mips	Enable machine sinking critical edge splitting. e.g.	2010-09-20 22:52:00 +00:00
MSP430	CombinerAA is now reordering these stores.	2010-09-20 20:56:29 +00:00
PIC16
PowerPC
PTX	Add the exit instruction to the PTX target.	2010-09-18 18:52:28 +00:00
SPARC
SystemZ	Correct bogus module triple specifications.	2010-08-30 10:48:29 +00:00
Thumb	Re-enable usage of the ARM base pointer. r113394 fixed the known failures.	2010-09-08 20:12:02 +00:00
Thumb2	Simplify ARM callee-saved register handling by removing the distinction	2010-09-20 19:32:20 +00:00
X86	Enable machine sinking critical edge splitting. e.g.	2010-09-20 22:52:00 +00:00
XCore	Enable machine sinking critical edge splitting. e.g.	2010-09-20 22:52:00 +00:00