[PowerPC] Add test case for negated abs. NFC.

diff --git a/llvm/test/CodeGen/PowerPC/select.ll b/llvm/test/CodeGen/PowerPC/select.ll
index a8baa12..7bfa03e 100644 (file)
--- a/llvm/test/CodeGen/PowerPC/select.ll
+++ b/llvm/test/CodeGen/PowerPC/select.ll
@@ -137,3 +137,106 @@ define i64 @f4(i64 %x) {
   %r = select i1 %c, i64 %x.neg, i64 %x
   ret i64 %r
 }
+
+define i64 @f4_sge_0(i64 %x) {
+; CHECK-LE-LABEL: f4_sge_0:
+; CHECK-LE:       # %bb.0:
+; CHECK-LE-NEXT:    neg r4, r3
+; CHECK-LE-NEXT:    cmpdi r3, -1
+; CHECK-LE-NEXT:    iselgt r3, r4, r3
+; CHECK-LE-NEXT:    blr
+;
+; CHECK-32-LABEL: f4_sge_0:
+; CHECK-32:       # %bb.0:
+; CHECK-32-NEXT:    subfic r5, r4, 0
+; CHECK-32-NEXT:    subfze r6, r3
+; CHECK-32-NEXT:    cmpwi r3, -1
+; CHECK-32-NEXT:    bc 12, gt, .LBB5_1
+; CHECK-32-NEXT:    blr
+; CHECK-32-NEXT:  .LBB5_1:
+; CHECK-32-NEXT:    addi r3, r6, 0
+; CHECK-32-NEXT:    addi r4, r5, 0
+; CHECK-32-NEXT:    blr
+  %c = icmp sge i64 %x, 0
+  %x.neg = sub i64 0, %x
+  %r = select i1 %c, i64 %x.neg, i64 %x
+  ret i64 %r
+}
+
+define i64 @f4_slt_0(i64 %x) {
+; CHECK-LE-LABEL: f4_slt_0:
+; CHECK-LE:       # %bb.0:
+; CHECK-LE-NEXT:    neg r4, r3
+; CHECK-LE-NEXT:    cmpdi r3, 0
+; CHECK-LE-NEXT:    isellt r3, r3, r4
+; CHECK-LE-NEXT:    blr
+;
+; CHECK-32-LABEL: f4_slt_0:
+; CHECK-32:       # %bb.0:
+; CHECK-32-NEXT:    subfic r5, r4, 0
+; CHECK-32-NEXT:    subfze r6, r3
+; CHECK-32-NEXT:    cmpwi r3, 0
+; CHECK-32-NEXT:    bclr 12, lt, 0
+; CHECK-32-NEXT:  # %bb.1:
+; CHECK-32-NEXT:    ori r3, r6, 0
+; CHECK-32-NEXT:    ori r4, r5, 0
+; CHECK-32-NEXT:    blr
+  %c = icmp slt i64 %x, 0
+  %x.neg = sub i64 0, %x
+  %r = select i1 %c, i64 %x, i64 %x.neg
+  ret i64 %r
+}
+
+define i64 @f4_sle_0(i64 %x) {
+; CHECK-LE-LABEL: f4_sle_0:
+; CHECK-LE:       # %bb.0:
+; CHECK-LE-NEXT:    neg r4, r3
+; CHECK-LE-NEXT:    cmpdi r3, 1
+; CHECK-LE-NEXT:    isellt r3, r3, r4
+; CHECK-LE-NEXT:    blr
+;
+; CHECK-32-LABEL: f4_sle_0:
+; CHECK-32:       # %bb.0:
+; CHECK-32-NEXT:    cmplwi r3, 0
+; CHECK-32-NEXT:    cmpwi cr1, r3, 0
+; CHECK-32-NEXT:    crandc 4*cr5+lt, 4*cr1+lt, eq
+; CHECK-32-NEXT:    cmpwi cr1, r4, 0
+; CHECK-32-NEXT:    subfic r5, r4, 0
+; CHECK-32-NEXT:    crand 4*cr5+gt, eq, 4*cr1+eq
+; CHECK-32-NEXT:    cror 4*cr5+lt, 4*cr5+gt, 4*cr5+lt
+; CHECK-32-NEXT:    subfze r6, r3
+; CHECK-32-NEXT:    bclr 12, 4*cr5+lt, 0
+; CHECK-32-NEXT:  # %bb.1:
+; CHECK-32-NEXT:    ori r3, r6, 0
+; CHECK-32-NEXT:    ori r4, r5, 0
+; CHECK-32-NEXT:    blr
+  %c = icmp sle i64 %x, 0
+  %x.neg = sub i64 0, %x
+  %r = select i1 %c, i64 %x, i64 %x.neg
+  ret i64 %r
+}
+
+define i64 @f4_sgt_m1(i64 %x) {
+; CHECK-LE-LABEL: f4_sgt_m1:
+; CHECK-LE:       # %bb.0:
+; CHECK-LE-NEXT:    neg r4, r3
+; CHECK-LE-NEXT:    cmpdi r3, -1
+; CHECK-LE-NEXT:    iselgt r3, r4, r3
+; CHECK-LE-NEXT:    blr
+;
+; CHECK-32-LABEL: f4_sgt_m1:
+; CHECK-32:       # %bb.0:
+; CHECK-32-NEXT:    subfic r5, r4, 0
+; CHECK-32-NEXT:    subfze r6, r3
+; CHECK-32-NEXT:    cmpwi r3, -1
+; CHECK-32-NEXT:    bc 12, gt, .LBB8_1
+; CHECK-32-NEXT:    blr
+; CHECK-32-NEXT:  .LBB8_1:
+; CHECK-32-NEXT:    addi r3, r6, 0
+; CHECK-32-NEXT:    addi r4, r5, 0
+; CHECK-32-NEXT:    blr
+  %c = icmp sgt i64 %x, -1
+  %x.neg = sub i64 0, %x
+  %r = select i1 %c, i64 %x.neg, i64 %x
+  ret i64 %r
+}