[llvm] r274914 - [X86] Added bitreverse tests for non-legal types

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Fri Jul  8 14:48:33 2016
New Revision: 274914

URL: http://llvm.org/viewvc/llvm-project?rev=274914&view=rev
Log:
[X86] Added bitreverse tests for non-legal types

Requested on D21578

Modified:
    llvm/trunk/test/CodeGen/X86/bitreverse.ll

Modified: llvm/trunk/test/CodeGen/X86/bitreverse.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/bitreverse.ll?rev=274914&r1=274913&r2=274914&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/bitreverse.ll (original)
+++ llvm/trunk/test/CodeGen/X86/bitreverse.ll Fri Jul  8 14:48:33 2016
@@ -5,22 +5,40 @@
 
 declare <2 x i16> @llvm.bitreverse.v2i16(<2 x i16>) readnone
 
-define <2 x i16> @f(<2 x i16> %a) {
-; CHECK-LABEL: f:
+define <2 x i16> @test_bitreverse_v2i16(<2 x i16> %a) {
+; CHECK-LABEL: test_bitreverse_v2i16:
 ; CHECK: shll
   %b = call <2 x i16> @llvm.bitreverse.v2i16(<2 x i16> %a)
   ret <2 x i16> %b
 }
 
+declare i24 @llvm.bitreverse.i24(i24) readnone
+
+define i24 @test_bitreverse_i24(i24 %a) {
+; CHECK-LABEL: test_bitreverse_i24:
+; CHECK: shll
+  %b = call i24 @llvm.bitreverse.i24(i24 %a)
+  ret i24 %b
+}
+
 declare i8 @llvm.bitreverse.i8(i8) readnone
 
-define i8 @g(i8 %a) {
-; CHECK-LABEL: g:
+define i8 @test_bitreverse_i8(i8 %a) {
+; CHECK-LABEL: test_bitreverse_i8:
 ; CHECK: shlb
   %b = call i8 @llvm.bitreverse.i8(i8 %a)
   ret i8 %b
 }
 
+declare i4 @llvm.bitreverse.i4(i4) readnone
+
+define i4 @test_bitreverse_i4(i4 %a) {
+; CHECK-LABEL: test_bitreverse_i4:
+; CHECK: shlb
+  %b = call i4 @llvm.bitreverse.i4(i4 %a)
+  ret i4 %b
+}
+
 ; These tests check that bitreverse(constant) calls are folded
 
 define <2 x i16> @fold_v2i16() {
@@ -33,6 +51,15 @@ define <2 x i16> @fold_v2i16() {
   ret <2 x i16> %b
 }
 
+define i24 @fold_i24() {
+; CHECK-LABEL: fold_i24:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    movl $2048, %eax
+; CHECK-NEXT:    retl
+  %b = call i24 @llvm.bitreverse.i24(i24 4096)
+  ret i24 %b
+}
+
 define i8 @fold_i8() {
 ; CHECK-LABEL: fold_i8:
 ; CHECK:       # BB#0:
@@ -42,6 +69,15 @@ define i8 @fold_i8() {
   ret i8 %b
 }
 
+define i4 @fold_i4() {
+; CHECK-LABEL: fold_i4:
+; CHECK:       # BB#0:
+; CHECK-NEXT:    movb $1, %al
+; CHECK-NEXT:    retl
+  %b = call i4 @llvm.bitreverse.i4(i4 8)
+  ret i4 %b
+}
+
 ; These tests check that bitreverse(bitreverse()) calls are removed
 
 define i8 @identity_i8(i8 %a) {