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Author SHA1 Message Date
Stephen Canon 8216d88511 Don't raise inexact when lowering ceil, floor, round, trunc. 
The C standard has historically not specified whether or not these functions should raise the inexact flag. Traditionally on Darwin, these functions *did* raise inexact, and the llvm lowerings followed that conventions. n1778 (C bindings for IEEE-754 (2008)) clarifies that these functions should not set inexact. This patch brings the lowerings for arm64 and x86 in line with the newly specified behavior.  This also lets us fold some logic into TD patterns, which is nice.

Differential Revision: http://reviews.llvm.org/D12969

llvm-svn: 248266
 2015-09-22 11:43:17 +00:00
Sanjay Patel 10294b59de fix minsize detection: minsize attribute implies optimizing for size 
llvm-svn: 244464
 2015-08-10 17:15:17 +00:00
Simon Pilgrim 752de5dff2 [X86][SSE] Added (V)ROUNDSD + (V)ROUNDSS stack folding support 
llvm-svn: 241671
 2015-07-08 08:07:57 +00:00
Simon Pilgrim a092fd8fc4 [X86][SSE] Added missing stack folding test for SQRTSD and SQRTSS instructions. 
llvm-svn: 241445
 2015-07-06 14:15:02 +00:00
Simon Pilgrim fd704fe895 [X86][SSE] Added missing stack folding test for CVTSD2SS instruction. 
llvm-svn: 240241
 2015-06-21 16:07:47 +00:00
Simon Pilgrim e68c8606ed [X86][SSE] Force execution domain on float/double unpack shuffle tests. 
llvm-svn: 235259
 2015-04-18 18:50:55 +00:00
Simon Pilgrim 0238b96c06 [X86] Force fp stack folding tests to keep to specific domain. 
General boolean instructions (AND, ANDN, OR, XOR) need to use a specific domain instruction (and not just the default).

llvm-svn: 228495
 2015-02-07 16:14:55 +00:00
Craig Topper 0271d10d35 [x86] Change u8imm operands to always print as unsigned. This makes shuffle masks and the like make way more sense. 
llvm-svn: 226902
 2015-01-23 08:00:59 +00:00
Simon Pilgrim 7e6d573e87 [X86][AVX] Added (V)MOVDDUP / (V)MOVSLDUP / (V)MOVSHDUP memory folding + tests. 
Minor tweak now that D7042 is complete, we can enable stack folding for (V)MOVDDUP and do proper testing.

Added missing AVX ymm folding patterns and fixed alignment for AVX VMOVSLDUP / VMOVSHDUP.

llvm-svn: 226873
 2015-01-22 22:39:59 +00:00
Simon Pilgrim ffddc01b00 [X86][SSE] Added SSE fp stack folding tests. 
Some folding patterns + tests are missing (marked as TODO) - these will be added in a future patch for review.

llvm-svn: 226621
 2015-01-20 23:50:18 +00:00