1 files changed, 241 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/int-cmp-15.ll b/test/CodeGen/SystemZ/int-cmp-15.ll
new file mode 100644
index 0000000..6bb7e2b3
--- /dev/null
+++ b/test/CodeGen/SystemZ/int-cmp-15.ll
@@ -0,0 +1,241 @@
+; Test 8-bit unsigned comparisons between memory and constants.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
+
+; Check ordered comparisons near the low end of the unsigned 8-bit range.
+define double @f1(double %a, double %b, i8 *%ptr) {
+; CHECK: f1:
+; CHECK: cli 0(%r2), 1
+; CHECK-NEXT: j{{g?}}h
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp ugt i8 %val, 1
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check ordered comparisons near the high end of the unsigned 8-bit range.
+define double @f2(double %a, double %b, i8 *%ptr) {
+; CHECK: f2:
+; CHECK: cli 0(%r2), 254
+; CHECK-NEXT: j{{g?}}l
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 254
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check tests for negative bytes.
+define double @f3(double %a, double %b, i8 *%ptr) {
+; CHECK: f3:
+; CHECK: cli 0(%r2), 127
+; CHECK-NEXT: j{{g?}}h
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp slt i8 %val, 0
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; ...and an alternative form.
+define double @f4(double %a, double %b, i8 *%ptr) {
+; CHECK: f4:
+; CHECK: cli 0(%r2), 127
+; CHECK-NEXT: j{{g?}}h
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp sle i8 %val, -1
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check tests for non-negative bytes.
+define double @f5(double %a, double %b, i8 *%ptr) {
+; CHECK: f5:
+; CHECK: cli 0(%r2), 128
+; CHECK-NEXT: j{{g?}}l
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp sge i8 %val, 0
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; ...and an alternative form.
+define double @f6(double %a, double %b, i8 *%ptr) {
+; CHECK: f6:
+; CHECK: cli 0(%r2), 128
+; CHECK-NEXT: j{{g?}}l
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp sgt i8 %val, -1
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check equality comparisons at the low end of the signed 8-bit range.
+define double @f7(double %a, double %b, i8 *%ptr) {
+; CHECK: f7:
+; CHECK: cli 0(%r2), 128
+; CHECK-NEXT: j{{g?}}e
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp eq i8 %val, -128
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check equality comparisons at the low end of the unsigned 8-bit range.
+define double @f8(double %a, double %b, i8 *%ptr) {
+; CHECK: f8:
+; CHECK: cli 0(%r2), 0
+; CHECK-NEXT: j{{g?}}e
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp eq i8 %val, 0
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check equality comparisons at the high end of the signed 8-bit range.
+define double @f9(double %a, double %b, i8 *%ptr) {
+; CHECK: f9:
+; CHECK: cli 0(%r2), 127
+; CHECK-NEXT: j{{g?}}e
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp eq i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check equality comparisons at the high end of the unsigned 8-bit range.
+define double @f10(double %a, double %b, i8 *%ptr) {
+; CHECK: f10:
+; CHECK: cli 0(%r2), 255
+; CHECK-NEXT: j{{g?}}e
+; CHECK: br %r14
+  %val = load i8 *%ptr
+  %cond = icmp eq i8 %val, 255
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the high end of the CLI range.
+define double @f11(double %a, double %b, i8 *%src) {
+; CHECK: f11:
+; CHECK: cli 4095(%r2), 127
+; CHECK: br %r14
+  %ptr = getelementptr i8 *%src, i64 4095
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the next byte up, which should use CLIY instead of CLI.
+define double @f12(double %a, double %b, i8 *%src) {
+; CHECK: f12:
+; CHECK: cliy 4096(%r2), 127
+; CHECK: br %r14
+  %ptr = getelementptr i8 *%src, i64 4096
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the high end of the CLIY range.
+define double @f13(double %a, double %b, i8 *%src) {
+; CHECK: f13:
+; CHECK: cliy 524287(%r2), 127
+; CHECK: br %r14
+  %ptr = getelementptr i8 *%src, i64 524287
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the next byte up, which needs separate address logic.
+; Other sequences besides this one would be OK.
+define double @f14(double %a, double %b, i8 *%src) {
+; CHECK: f14:
+; CHECK: agfi %r2, 524288
+; CHECK: cli 0(%r2), 127
+; CHECK: br %r14
+  %ptr = getelementptr i8 *%src, i64 524288
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the high end of the negative CLIY range.
+define double @f15(double %a, double %b, i8 *%src) {
+; CHECK: f15:
+; CHECK: cliy -1(%r2), 127
+; CHECK: br %r14
+  %ptr = getelementptr i8 *%src, i64 -1
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the low end of the CLIY range.
+define double @f16(double %a, double %b, i8 *%src) {
+; CHECK: f16:
+; CHECK: cliy -524288(%r2), 127
+; CHECK: br %r14
+  %ptr = getelementptr i8 *%src, i64 -524288
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check the next byte down, which needs separate address logic.
+; Other sequences besides this one would be OK.
+define double @f17(double %a, double %b, i8 *%src) {
+; CHECK: f17:
+; CHECK: agfi %r2, -524289
+; CHECK: cli 0(%r2), 127
+; CHECK: br %r14
+  %ptr = getelementptr i8 *%src, i64 -524289
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check that CLI does not allow an index
+define double @f18(double %a, double %b, i64 %base, i64 %index) {
+; CHECK: f18:
+; CHECK: agr %r2, %r3
+; CHECK: cli 4095(%r2), 127
+; CHECK: br %r14
+  %add1 = add i64 %base, %index
+  %add2 = add i64 %add1, 4095
+  %ptr = inttoptr i64 %add2 to i8 *
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}
+
+; Check that CLIY does not allow an index
+define double @f19(double %a, double %b, i64 %base, i64 %index) {
+; CHECK: f19:
+; CHECK: agr %r2, %r3
+; CHECK: cliy 4096(%r2), 127
+; CHECK: br %r14
+  %add1 = add i64 %base, %index
+  %add2 = add i64 %add1, 4096
+  %ptr = inttoptr i64 %add2 to i8 *
+  %val = load i8 *%ptr
+  %cond = icmp ult i8 %val, 127
+  %res = select i1 %cond, double %a, double %b
+  ret double %res
+}