stuff to emit optimal nops in the right places.

llvm-svn: 97233

present in the module.

llvm-svn: 97232

llvm-svn: 97231

llvm-svn: 97228

llvm-svn: 97227

Previously LoopStrengthReduce would sometimes be unable to find
a legal formula, causing an assertion failure.

llvm-svn: 97226

llvm-svn: 97220

object construction. There is no provision to change them when the 
code for a function generated. 
So we have to change these names while printing assembly.

llvm-svn: 97213

llvm-svn: 97211

llvm-svn: 97201

llvm-svn: 97200

the alignment requirement, if it no longer makes the TType base offset overflow
into extra bytes, then we need to pad to those bytes ourselves.

llvm-svn: 97196

llvm-svn: 97193

llvm-svn: 97192

will eliminate the need for padding in the "Call site table length". E.g., if
we have this:

    GCC_except_table1:
    Lexception1:
        .byte   0xff  ## @LPStart Encoding = omit
        .byte   0x9b  ## @TType Encoding = indirect pcrel sdata4
        .byte   0x7f  ## @TType base offset
        .byte   0x03  ## Call site Encoding = udata4
        .byte   0x89  ## Call site table length

with padding of 1. We want to emit the padding like this:
 
    GCC_except_table1:
    Lexception1:
        .byte   0xff  ## @LPStart Encoding = omit
        .byte   0x9b  ## @TType Encoding = indirect pcrel sdata4
        .byte   0xff  ## @TType base offset
        .space  1,0   ## Padding
        .byte   0x03  ## Call site Encoding = udata4
        .byte   0x89  ## Call site table length

and not with padding on the "Call site table length" entry.

llvm-svn: 97183

introduced when mallocinst was eliminated. 

llvm-svn: 97178

llvm-svn: 97169

operands are themselves vectors. Based on a patch by
Micah Villmow for PR6338.

llvm-svn: 97165

and SRS.

llvm-svn: 97164

llvm-svn: 97163

llvm-svn: 97159

section with TextAlignFillValue and calls EmitCodeAlignment() instead of
calling EmitValueToAlignment().  This allows x86 assembly code to be aligned
with optimal nops.

llvm-svn: 97158

llvm-svn: 97151

WFI, SEV, SETEND.

llvm-svn: 97149

llvm-svn: 97142

llvm-svn: 97141

terms of store and load, which means bitcasting between scalar
integer and vector has endian-specific results, which undermines
this whole approach.

llvm-svn: 97137

keep track of instructions that return void) per-function. This fixes PR5278.

This breaks backwards compatibility with the metadata format. That's okay
because we haven't released the metadata bitcode yet.

llvm-svn: 97132

which branch on undef to branch on a boolean constant for the edge
exiting the loop. This helps ScalarEvolution compute trip counts for
loops.

Teach ScalarEvolution to recognize single-value PHIs, when safe, and
ForgetSymbolicName to forget such single-value PHI nodes as apprpriate
in ForgetSymbolicName.

llvm-svn: 97126

format is not parsable, even if the module is legal. To get parsable output,
dump the module instead of the function or smaller, since metadata kind are
attached to the module (not the context).

llvm-svn: 97124

llvm-svn: 97121

llvm-svn: 97120

llvm-svn: 97108

llvm-svn: 97105

just discarding one of the registers.

llvm-svn: 97100

llvm-svn: 97099

llvm-svn: 97098

(511*16) bytes register displacement (D-form).

NOTE: This is a potential headache, given the SPU's local core limitations,
allowing the software developer to commit stack overrun suicide unknowingly.
Also, large SPU stack frames will cause code size explosion. But, one presumes
that the software developer knows what they're doing...

Contributed by Kalle.Raiskila@nokia.com, edited slightly before commit.

llvm-svn: 97091

llvm-svn: 97087

GCC_except_table label but before the Lexception, which the FDE references.
This causes problems as the FDE does not point to the start of an LSDA chunk.

Use an unnormalized uleb128 for the call-site table length that includes the
padding.

llvm-svn: 97078