| ; RUN: llc -march=sparc < %s | FileCheck %s |
| |
| |
| ; If computeKnownSignBits (in SelectionDAG) can do a simple |
| ; look-thru for extractelement then we we know that the add will yield a |
| ; non-negative result. |
| define i1 @test1(<4 x i16>* %in) { |
| ; CHECK-LABEL: ! BB#0: |
| ; CHECK-NEXT: retl |
| ; CHECK-NEXT: sethi 0, %o0 |
| %vec2 = load <4 x i16>, <4 x i16>* %in, align 1 |
| %vec3 = lshr <4 x i16> %vec2, <i16 2, i16 2, i16 2, i16 2> |
| %vec4 = sext <4 x i16> %vec3 to <4 x i32> |
| %elt0 = extractelement <4 x i32> %vec4, i32 0 |
| %elt1 = extractelement <4 x i32> %vec4, i32 1 |
| %sum = add i32 %elt0, %elt1 |
| %bool = icmp slt i32 %sum, 0 |
| ret i1 %bool |
| } |