ShortenEHDataFor64Bits as a not-very-accurate
abstraction to cover all the changes in DwarfWriter.
Some cosmetic changes to Darwin assembly code for
gcc testsuite compatibility.

llvm-svn: 46029

Move some calls to getVRegDef higher in the callgraph, so they don't get executed as frequently in performance sensitive code.

llvm-svn: 46027

llvm-svn: 46026

llvm-svn: 46019

it's a function pointer) not MVT::Other.  This fixes builtin_trap
lowering on ppc, alpha, ia64

llvm-svn: 46018

Move definition of 'trap' sdnode up from x86 instrinfo to targetselectiondag.td.

llvm-svn: 46017

llvm-svn: 46016

llvm-svn: 46015

llvm-svn: 46014

llvm-svn: 46012

llvm-svn: 46009

llvm-svn: 46002

as well as PPC codegen

llvm-svn: 46001

Rename CCIfStruct to CCIfByVal and CCStructAssign to CCPassByVal. Remove unused parameters of CCStructAssign and add size and alignment requirement info.

llvm-svn: 45997

llvm-svn: 45996

llvm-svn: 45995

llvm-svn: 45974

drop attributes on varargs call arguments.  Also, it could generate
invalid IR if the transformed call already had the 'nest' attribute
somewhere (this can never happen for code coming from llvm-gcc,
but it's a theoretical possibility).  Fix both problems.

llvm-svn: 45973

llvm-svn: 45972

llvm-svn: 45971

an instruction kills a register or not.  This is cheap and 
easy to do now that instructions record this on their flags,
and this eliminates the second pass of LiveVariables from the
x86 backend.  This speeds up a release llc by ~2.5%.

llvm-svn: 45955

llvm-svn: 45950

byval work.  This miscompilation is due to the program indexing an array out
of range and us doing a transformation that broke this.

llvm-svn: 45949

llvm-svn: 45948

difficult to understand the invariants.

llvm-svn: 45947

easier to show that its safe.  No functionality change.

llvm-svn: 45946

a load/store of i64.  The later prevents promotion/scalarrepl of the
source and dest in many cases.

This fixes the 300% performance regression of the byval stuff on 
stepanov_v1p2.

llvm-svn: 45945

method, no functionality change.

llvm-svn: 45944

greater than memcpy alignment, and if we lower to load/store, use the best 
alignment info we have.

llvm-svn: 45943

make memmove->memcpy conversion a bit simpler.

llvm-svn: 45942

llvm-svn: 45940

a pointer to a struct.

llvm-svn: 45939

a size, not just structs.

llvm-svn: 45938

realize that ne & sgt  was a signed comparison (it was only 
looking at whether the left compare was signed).

llvm-svn: 45937

llvm-svn: 45932

if this becomes a varargs call then deal correctly with any
parameter attributes on the newly vararg call arguments.

llvm-svn: 45931

llvm-svn: 45917

llvm-svn: 45914

llvm-svn: 45913

inlining a function if we know that the function does not write
to *any* memory.  This implements test/Transforms/Inline/byval2.ll

llvm-svn: 45912