[llvm-commits] [llvm] r55864 - in /llvm/trunk: lib/Target/X86/X86InstrSSE.td test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll

[Eli Friedman]

Author: efriedma
Date: Fri Sep  5 18:07:03 2008
New Revision: 55864

URL: http://llvm.org/viewvc/llvm-project?rev=55864&view=rev
Log:
Fix for PR2687: Add patterns to match sint_to_fp and fp_to_sint for <2 x 
i32>.  This is a little messy, but it works.

We should really get rid of the intrinsics, though, since they map
perfectly well to standard LLVM instructions.


Added:
    llvm/trunk/test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll
Modified:
    llvm/trunk/lib/Target/X86/X86InstrSSE.td

Modified: llvm/trunk/lib/Target/X86/X86InstrSSE.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrSSE.td?rev=55864&r1=55863&r2=55864&view=diff

==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrSSE.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrSSE.td Fri Sep  5 18:07:03 2008
@@ -3080,6 +3080,10 @@
           (Int_CVTDQ2PSrr VR128:$src)>, Requires<[HasSSE2]>;
 def : Pat<(v4i32 (fp_to_sint (v4f32 VR128:$src))),
           (Int_CVTTPS2DQrr VR128:$src)>, Requires<[HasSSE2]>;
+def : Pat<(v2f64 (sint_to_fp (v2i32 VR64:$src))),
+          (Int_CVTPI2PDrr VR64:$src)>, Requires<[HasSSE2]>;
+def : Pat<(v2i32 (fp_to_sint (v2f64 VR128:$src))),
+          (Int_CVTTPD2PIrr VR128:$src)>, Requires<[HasSSE2]>;
 
 // Use movaps / movups for SSE integer load / store (one byte shorter).
 def : Pat<(alignedloadv4i32 addr:$src),

Added: llvm/trunk/test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll?rev=55864&view=auto

==============================================================================
--- llvm/trunk/test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll (added)
+++ llvm/trunk/test/CodeGen/X86/2008-09-05-sinttofp-2xi32.ll Fri Sep  5 18:07:03 2008
@@ -0,0 +1,15 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep cvttpd2pi | count 1
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep cvtpi2pd | count 1
+; PR2687
+
+define <2 x double> @a(<2 x i32> %x) nounwind {
+entry:
+  %y = sitofp <2 x i32> %x to <2 x double>
+  ret <2 x double> %y
+}
+
+define <2 x i32> @b(<2 x double> %x) nounwind {
+entry:
+  %y = fptosi <2 x double> %x to <2 x i32>
+  ret <2 x i32> %y
+}