llvm-mirror/combine-lds.ll at 2682e8745c9c6940062655e132c710b414d2c8bf - llvm-mirror - Gitea: Git with a cup of tea

RPCS3/llvm-mirror

mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-12-22 11:39:35 +00:00

Evan Cheng bd15e330d0 For whatever the reason, x86 CallingConv::Fast (i.e. fastcc) was not passing scalar arguments in registers. This patch defines a new fastcc CC which is slightly different from the FastCall CC. In addition to passing integer arguments in ECX and EDX, it also specify doubles are passed in 8-byte slots which are 8-byte aligned (instead of 4-byte aligned). This avoids a potential performance hazard where doubles span cacheline boundaries.

llvm-svn: 55807

2008-09-04 22:59:58 +00:00

7 lines

175 B

LLVM

Raw Blame History

 ; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep fldl | count 1
 define double @doload64(i64 %x) nounwind  {
 	%tmp717 = bitcast i64 %x to double
 	ret double %tmp717
 }