Make sure that all globals are internal, except for "start" functions.

tests_lit/llvm2ice_tests/vector-cast.ll

Index: tests_lit/llvm2ice_tests/vector-cast.ll
diff --git a/tests_lit/llvm2ice_tests/vector-cast.ll b/tests_lit/llvm2ice_tests/vector-cast.ll
index 3dae1fc7bc6352cb124c4848dffbfe81dcd23226..d36b7b9e924cb542bab1009cd313fd7f50e25c94 100644
--- a/tests_lit/llvm2ice_tests/vector-cast.ll
+++ b/tests_lit/llvm2ice_tests/vector-cast.ll
@@ -6,7 +6,7 @@
 
 ; sext operations
 
-define <16 x i8> @test_sext_v16i1_to_v16i8(<16 x i1> %arg) {
+define internal <16 x i8> @test_sext_v16i1_to_v16i8(<16 x i1> %arg) {
 entry:
   %res = sext <16 x i1> %arg to <16 x i8>
   ret <16 x i8> %res
@@ -20,7 +20,7 @@ entry:
 ; CHECK: pcmpgtb
 }
 
-define <8 x i16> @test_sext_v8i1_to_v8i16(<8 x i1> %arg) {
+define internal <8 x i16> @test_sext_v8i1_to_v8i16(<8 x i1> %arg) {
 entry:
   %res = sext <8 x i1> %arg to <8 x i16>
   ret <8 x i16> %res
@@ -30,7 +30,7 @@ entry:
 ; CHECK: psraw {{.*}},0xf
 }
 
-define <4 x i32> @test_sext_v4i1_to_v4i32(<4 x i1> %arg) {
+define internal <4 x i32> @test_sext_v4i1_to_v4i32(<4 x i1> %arg) {
 entry:
   %res = sext <4 x i1> %arg to <4 x i32>
   ret <4 x i32> %res
@@ -42,7 +42,7 @@ entry:
 
 ; zext operations
 
-define <16 x i8> @test_zext_v16i1_to_v16i8(<16 x i1> %arg) {
+define internal <16 x i8> @test_zext_v16i1_to_v16i8(<16 x i1> %arg) {
 entry:
   %res = zext <16 x i1> %arg to <16 x i8>
   ret <16 x i8> %res
@@ -54,7 +54,7 @@ entry:
 ; CHECK: pand
 }
 
-define <8 x i16> @test_zext_v8i1_to_v8i16(<8 x i1> %arg) {
+define internal <8 x i16> @test_zext_v8i1_to_v8i16(<8 x i1> %arg) {
 entry:
   %res = zext <8 x i1> %arg to <8 x i16>
   ret <8 x i16> %res
@@ -66,7 +66,7 @@ entry:
 ; CHECK: pand
 }
 
-define <4 x i32> @test_zext_v4i1_to_v4i32(<4 x i1> %arg) {
+define internal <4 x i32> @test_zext_v4i1_to_v4i32(<4 x i1> %arg) {
 entry:
   %res = zext <4 x i1> %arg to <4 x i32>
   ret <4 x i32> %res
@@ -80,7 +80,7 @@ entry:
 
 ; trunc operations
 
-define <16 x i1> @test_trunc_v16i8_to_v16i1(<16 x i8> %arg) {
+define internal <16 x i1> @test_trunc_v16i8_to_v16i1(<16 x i8> %arg) {
 entry:
   %res = trunc <16 x i8> %arg to <16 x i1>
   ret <16 x i1> %res
@@ -92,7 +92,7 @@ entry:
 ; CHECK: pand
 }
 
-define <8 x i1> @test_trunc_v8i16_to_v8i1(<8 x i16> %arg) {
+define internal <8 x i1> @test_trunc_v8i16_to_v8i1(<8 x i16> %arg) {
 entry:
   %res = trunc <8 x i16> %arg to <8 x i1>
   ret <8 x i1> %res
@@ -104,7 +104,7 @@ entry:
 ; CHECK: pand
 }
 
-define <4 x i1> @test_trunc_v4i32_to_v4i1(<4 x i32> %arg) {
+define internal <4 x i1> @test_trunc_v4i32_to_v4i1(<4 x i32> %arg) {
 entry:
   %res = trunc <4 x i32> %arg to <4 x i1>
   ret <4 x i1> %res
@@ -118,7 +118,7 @@ entry:
 
 ; fpto[us]i operations
 
-define <4 x i32> @test_fptosi_v4f32_to_v4i32(<4 x float> %arg) {
+define internal <4 x i32> @test_fptosi_v4f32_to_v4i32(<4 x float> %arg) {
 entry:
   %res = fptosi <4 x float> %arg to <4 x i32>
   ret <4 x i32> %res
@@ -127,7 +127,7 @@ entry:
 ; CHECK: cvttps2dq
 }
 
-define <4 x i32> @test_fptoui_v4f32_to_v4i32(<4 x float> %arg) {
+define internal <4 x i32> @test_fptoui_v4f32_to_v4i32(<4 x float> %arg) {
 entry:
   %res = fptoui <4 x float> %arg to <4 x i32>
   ret <4 x i32> %res
@@ -138,7 +138,7 @@ entry:
 
 ; [su]itofp operations
 
-define <4 x float> @test_sitofp_v4i32_to_v4f32(<4 x i32> %arg) {
+define internal <4 x float> @test_sitofp_v4i32_to_v4f32(<4 x i32> %arg) {
 entry:
   %res = sitofp <4 x i32> %arg to <4 x float>
   ret <4 x float> %res
@@ -147,7 +147,7 @@ entry:
 ; CHECK: cvtdq2ps
 }
 
-define <4 x float> @test_uitofp_v4i32_to_v4f32(<4 x i32> %arg) {
+define internal <4 x float> @test_uitofp_v4i32_to_v4f32(<4 x i32> %arg) {
 entry:
   %res = uitofp <4 x i32> %arg to <4 x float>
   ret <4 x float> %res