2208c97c1b
Similar to 806761a7629df268c8aed49657aeccffa6bca449 -mtriple= specifies the full target triple while -march= merely sets the architecture part of the default target triple, leaving a target triple which may not make sense. Therefore, -march= is error-prone and not recommended for tests without a target triple. The issue has been benign as we recognize $unknown-apple-darwin as ELF instead of rejecting it outrightly.
31 lines
795 B
LLVM
31 lines
795 B
LLVM
; RUN: llc -O2 -mtriple=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 }
|