blob: b2a2e8d5a5390d5e97c0369b690a5a851b351c1d [file] [log] [blame]
; RUN: llc -O2 -march=hexagon < %s | FileCheck %s
; Hexagon's vsplatb/vsplath only consider the lower 8/16 bits of the source
; register. Any extension of the source is not necessary.
; CHECK-NOT: zxtb
; CHECK-NOT: zxth
target triple = "hexagon"
; Function Attrs: nounwind readnone
define i64 @f0(i64 %a0) #0 {
b0:
%v0 = trunc i64 %a0 to i32
%v1 = and i32 %v0, 65535
%v2 = tail call i64 @llvm.hexagon.S2.vsplatrh(i32 %v1)
%v3 = and i32 %v0, 255
%v4 = tail call i32 @llvm.hexagon.S2.vsplatrb(i32 %v3)
%v5 = sext i32 %v4 to i64
%v6 = add nsw i64 %v5, %v2
ret i64 %v6
}
; Function Attrs: nounwind readnone
declare i64 @llvm.hexagon.S2.vsplatrh(i32) #0
; Function Attrs: nounwind readnone
declare i32 @llvm.hexagon.S2.vsplatrb(i32) #0
attributes #0 = { nounwind readnone }