blob: 702f063bfcc6ad28e25e5ab3f4d97c5b1723ca0f [file] [log] [blame]
; 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
}