Remove Emscripten support

test/CodeGen/JS/simd-select.ll

-; RUN: llc < %s | FileCheck %s
-
-target datalayout = "e-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-p:32:32:32-v128:32:128-n32-S128"
-target triple = "asmjs-unknown-emscripten"
-
-; CHECK: function _test0($a,$b,$cond) {
-; CHECK:  $a = SIMD_int32x4_check($a);
-; CHECK:  $b = SIMD_int32x4_check($b);
-; CHECK:  $cond = SIMD_int32x4_check($cond);
-; CHECK:  $cmp = SIMD_int32x4_select($cond,$a,$b);
-; CHECK:  return (SIMD_int32x4_check($cmp));
-; CHECK: }
-define <4 x i32> @test0(<4 x i32> %a, <4 x i32> %b, <4 x i1> %cond) nounwind {
-entry:
-  %cmp = select <4 x i1> %cond, <4 x i32> %a, <4 x i32> %b
-  ret <4 x i32> %cmp
-}
-
-; CHECK: function _test1($a,$b,$cond) {
-; CHECK:  $a = SIMD_float32x4_check($a);
-; CHECK:  $b = SIMD_float32x4_check($b);
-; CHECK:  $cond = SIMD_int32x4_check($cond);
-; CHECK:  $cmp = SIMD_float32x4_select($cond,$a,$b);
-; CHECK:  return (SIMD_float32x4_check($cmp));
-; CHECK: }
-define <4 x float> @test1(<4 x float> %a, <4 x float> %b, <4 x i1> %cond) nounwind {
-entry:
-  %cmp = select <4 x i1> %cond, <4 x float> %a, <4 x float> %b
-  ret <4 x float> %cmp
-}
-
-; CHECK: function _test2($a,$b,$cond) {
-; CHECK:  $a = SIMD_int32x4_check($a);
-; CHECK:  $b = SIMD_int32x4_check($b);
-; CHECK:  $cond = $cond|0;
-; CHECK:  $cmp = $cond ? $a : $b;
-; CHECK:  return (SIMD_int32x4_check($cmp));
-; CHECK: }
-define <4 x i32> @test2(<4 x i32> %a, <4 x i32> %b, i1 %cond) nounwind {
-entry:
-  %cmp = select i1 %cond, <4 x i32> %a, <4 x i32> %b
-  ret <4 x i32> %cmp
-}
-
-; CHECK: function _test3($a,$b,$cond) {
-; CHECK:  $a = SIMD_float32x4_check($a);
-; CHECK:  $b = SIMD_float32x4_check($b);
-; CHECK:  $cond = $cond|0;
-; CHECK:  $cmp = $cond ? $a : $b;
-; CHECK:  return (SIMD_float32x4_check($cmp));
-; CHECK: }
-define <4 x float> @test3(<4 x float> %a, <4 x float> %b, i1 %cond) nounwind {
-entry:
-  %cmp = select i1 %cond, <4 x float> %a, <4 x float> %b
-  ret <4 x float> %cmp
-}