Don't use a potentially expensive shift if all we want is one set bit.

[oota-llvm.git] / test / CodeGen / SystemZ / atomicrmw-xor-01.ll

diff --git a/test/CodeGen/SystemZ/atomicrmw-xor-01.ll b/test/CodeGen/SystemZ/atomicrmw-xor-01.ll
index 13cdf02f486c6d833cc8c681aa794a7f87e733d8..5f0957a090bc66c9042528256a07b9b75f806f09 100644 (file)
--- a/test/CodeGen/SystemZ/atomicrmw-xor-01.ll
+++ b/test/CodeGen/SystemZ/atomicrmw-xor-01.ll
@@ -14,15 +14,15 @@
 ;   instructions.
 define i8 @f1(i8 *%src, i8 %b) {
 ; CHECK: f1:
-; CHECK: sllg [[SHIFT:%r[1-9]+]], %r2, 3
-; CHECK: nill %r2, 65532
-; CHECK: l [[OLD:%r[0-9]+]], 0(%r2)
+; CHECK-DAG: sllg [[SHIFT:%r[1-9]+]], %r2, 3
+; CHECK-DAG: risbg [[BASE:%r[1-9]+]], %r2, 0, 189, 0
+; CHECK: l [[OLD:%r[0-9]+]], 0([[BASE]])
 ; CHECK: [[LABEL:\.[^:]*]]:
 ; CHECK: rll [[ROT:%r[0-9]+]], [[OLD]], 0([[SHIFT]])
 ; CHECK: xr [[ROT]], %r3
 ; CHECK: rll [[NEW:%r[0-9]+]], [[ROT]], 0({{%r[1-9]+}})
-; CHECK: cs [[OLD]], [[NEW]], 0(%r2)
-; CHECK: j{{g?}}lh [[LABEL]]
+; CHECK: cs [[OLD]], [[NEW]], 0([[BASE]])
+; CHECK: jlh [[LABEL]]
 ; CHECK: rll %r2, [[OLD]], 8([[SHIFT]])
 ; CHECK: br %r14
 ;
@@ -48,15 +48,15 @@ define i8 @f1(i8 *%src, i8 %b) {
 ; Check the minimum signed value.  We XOR the rotated word with 0x80000000.
 define i8 @f2(i8 *%src) {
 ; CHECK: f2:
-; CHECK: sllg [[SHIFT:%r[1-9]+]], %r2, 3
-; CHECK: nill %r2, 65532
-; CHECK: l [[OLD:%r[0-9]+]], 0(%r2)
+; CHECK-DAG: sllg [[SHIFT:%r[1-9]+]], %r2, 3
+; CHECK-DAG: risbg [[BASE:%r[1-9]+]], %r2, 0, 189, 0
+; CHECK: l [[OLD:%r[0-9]+]], 0([[BASE]])
 ; CHECK: [[LABEL:\.[^:]*]]:
 ; CHECK: rll [[ROT:%r[0-9]+]], [[OLD]], 0([[SHIFT]])
 ; CHECK: xilf [[ROT]], 2147483648
 ; CHECK: rll [[NEW:%r[0-9]+]], [[ROT]], 0([[NEGSHIFT:%r[1-9]+]])
-; CHECK: cs [[OLD]], [[NEW]], 0(%r2)
-; CHECK: j{{g?}}lh [[LABEL]]
+; CHECK: cs [[OLD]], [[NEW]], 0([[BASE]])
+; CHECK: jlh [[LABEL]]
 ; CHECK: rll %r2, [[OLD]], 8([[SHIFT]])
 ; CHECK: br %r14
 ;