mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
40 lines
1.3 KiB
LLVM
40 lines
1.3 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-linux -join-physregs | FileCheck %s
|
|
; CHECK-NOT: mov
|
|
; CHECK: paddw
|
|
; CHECK-NOT: mov
|
|
; CHECK: paddw
|
|
; CHECK-NOT: paddw
|
|
; CHECK-NOT: mov
|
|
|
|
; The 2-addr pass should ensure that identical code is produced for these functions
|
|
; no extra copy should be generated.
|
|
|
|
define <2 x i64> @test1(<2 x i64> %x, <2 x i64> %y) nounwind {
|
|
entry:
|
|
%tmp6 = bitcast <2 x i64> %y to <8 x i16> ; <<8 x i16>> [#uses=1]
|
|
%tmp8 = bitcast <2 x i64> %x to <8 x i16> ; <<8 x i16>> [#uses=1]
|
|
%tmp9 = add <8 x i16> %tmp8, %tmp6 ; <<8 x i16>> [#uses=1]
|
|
%tmp10 = bitcast <8 x i16> %tmp9 to <2 x i64> ; <<2 x i64>> [#uses=1]
|
|
ret <2 x i64> %tmp10
|
|
}
|
|
|
|
define <2 x i64> @test2(<2 x i64> %x, <2 x i64> %y) nounwind {
|
|
entry:
|
|
%tmp6 = bitcast <2 x i64> %x to <8 x i16> ; <<8 x i16>> [#uses=1]
|
|
%tmp8 = bitcast <2 x i64> %y to <8 x i16> ; <<8 x i16>> [#uses=1]
|
|
%tmp9 = add <8 x i16> %tmp8, %tmp6 ; <<8 x i16>> [#uses=1]
|
|
%tmp10 = bitcast <8 x i16> %tmp9 to <2 x i64> ; <<2 x i64>> [#uses=1]
|
|
ret <2 x i64> %tmp10
|
|
}
|
|
|
|
|
|
; The coalescer should commute the add to avoid a copy.
|
|
define <4 x float> @test3(<4 x float> %V) {
|
|
entry:
|
|
%tmp8 = shufflevector <4 x float> %V, <4 x float> undef,
|
|
<4 x i32> < i32 3, i32 2, i32 1, i32 0 >
|
|
%add = fadd <4 x float> %tmp8, %V
|
|
ret <4 x float> %add
|
|
}
|
|
|