Revert r198208 and reapply:

[oota-llvm.git] / test / CodeGen / SystemZ / int-cmp-43.ll

diff --git a/test/CodeGen/SystemZ/int-cmp-43.ll b/test/CodeGen/SystemZ/int-cmp-43.ll
index f387293b2b1b9ae67845519f813b5585348158d6..1a625886dec2b4ad38c2140a44204f207fe7c322 100644 (file)
--- a/test/CodeGen/SystemZ/int-cmp-43.ll
+++ b/test/CodeGen/SystemZ/int-cmp-43.ll
@@ -4,12 +4,13 @@
 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
 
 @g = global i64 1
+@h = global i64 1, align 4, section "foo"
 
 ; Check signed comparisons.
 define i64 @f1(i64 %src1) {
-; CHECK: f1:
+; CHECK-LABEL: f1:
 ; CHECK: cgrl %r2, g
-; CHECK-NEXT: j{{g?}}l
+; CHECK-NEXT: jl
 ; CHECK: br %r14
 entry:
   %src2 = load i64 *@g
@@ -25,9 +26,9 @@ exit:
 
 ; Check unsigned comparisons.
 define i64 @f2(i64 %src1) {
-; CHECK: f2:
+; CHECK-LABEL: f2:
 ; CHECK: clgrl %r2, g
-; CHECK-NEXT: j{{g?}}l
+; CHECK-NEXT: jl
 ; CHECK: br %r14
 entry:
   %src2 = load i64 *@g
@@ -43,9 +44,9 @@ exit:
 
 ; Check equality, which can use CRL or CLRL.
 define i64 @f3(i64 %src1) {
-; CHECK: f3:
+; CHECK-LABEL: f3:
 ; CHECK: c{{l?}}grl %r2, g
-; CHECK-NEXT: j{{g?}}e
+; CHECK-NEXT: je
 ; CHECK: br %r14
 entry:
   %src2 = load i64 *@g
@@ -61,9 +62,9 @@ exit:
 
 ; ...likewise inequality.
 define i64 @f4(i64 %src1) {
-; CHECK: f4:
+; CHECK-LABEL: f4:
 ; CHECK: c{{l?}}grl %r2, g
-; CHECK-NEXT: j{{g?}}lh
+; CHECK-NEXT: jlh
 ; CHECK: br %r14
 entry:
   %src2 = load i64 *@g
@@ -76,3 +77,40 @@ exit:
   %res = phi i64 [ %src1, %entry ], [ %mul, %mulb ]
   ret i64 %res
 }
+
+; Repeat f1 with an unaligned address.
+define i64 @f5(i64 %src1) {
+; CHECK-LABEL: f5:
+; CHECK: larl [[REG:%r[0-5]]], h
+; CHECK: cg %r2, 0([[REG]])
+; CHECK-NEXT: jl
+; CHECK: br %r14
+entry:
+  %src2 = load i64 *@h, align 4
+  %cond = icmp slt i64 %src1, %src2
+  br i1 %cond, label %exit, label %mulb
+mulb:
+  %mul = mul i64 %src1, %src1
+  br label %exit
+exit:
+  %res = phi i64 [ %src1, %entry ], [ %mul, %mulb ]
+  ret i64 %res
+}
+
+; Check the comparison can be reversed if that allows CGRL to be used.
+define i64 @f6(i64 %src2) {
+; CHECK-LABEL: f6:
+; CHECK: cgrl %r2, g
+; CHECK-NEXT: jh {{\.L.*}}
+; CHECK: br %r14
+entry:
+  %src1 = load i64 *@g
+  %cond = icmp slt i64 %src1, %src2
+  br i1 %cond, label %exit, label %mulb
+mulb:
+  %mul = mul i64 %src2, %src2
+  br label %exit
+exit:
+  %res = phi i64 [ %src2, %entry ], [ %mul, %mulb ]
+  ret i64 %res
+}