[SystemZ] Add floating-point load-and-test instructions
These instructions can also be used as comparisons with zero.
llvm-svn: 187882
diff --git a/llvm/test/CodeGen/SystemZ/fp-cmp-01.ll b/llvm/test/CodeGen/SystemZ/fp-cmp-01.ll
index d59640e..6a9598e 100644
--- a/llvm/test/CodeGen/SystemZ/fp-cmp-01.ll
+++ b/llvm/test/CodeGen/SystemZ/fp-cmp-01.ll
@@ -147,3 +147,15 @@
ret float %sel10
}
+
+; Check comparison with zero.
+define i64 @f8(i64 %a, i64 %b, float %f) {
+; CHECK-LABEL: f8:
+; CHECK: ltebr %f0, %f0
+; CHECK-NEXT: je
+; CHECK: lgr %r2, %r3
+; CHECK: br %r14
+ %cond = fcmp oeq float %f, 0.0
+ %res = select i1 %cond, i64 %a, i64 %b
+ ret i64 %res
+}
diff --git a/llvm/test/CodeGen/SystemZ/fp-cmp-02.ll b/llvm/test/CodeGen/SystemZ/fp-cmp-02.ll
index 48374a7..309d12e 100644
--- a/llvm/test/CodeGen/SystemZ/fp-cmp-02.ll
+++ b/llvm/test/CodeGen/SystemZ/fp-cmp-02.ll
@@ -147,3 +147,15 @@
ret double %sel10
}
+
+; Check comparison with zero.
+define i64 @f8(i64 %a, i64 %b, double %f) {
+; CHECK-LABEL: f8:
+; CHECK: ltdbr %f0, %f0
+; CHECK-NEXT: je
+; CHECK: lgr %r2, %r3
+; CHECK: br %r14
+ %cond = fcmp oeq double %f, 0.0
+ %res = select i1 %cond, i64 %a, i64 %b
+ ret i64 %res
+}
diff --git a/llvm/test/CodeGen/SystemZ/fp-cmp-03.ll b/llvm/test/CodeGen/SystemZ/fp-cmp-03.ll
index 3badc46..0f71f4e 100644
--- a/llvm/test/CodeGen/SystemZ/fp-cmp-03.ll
+++ b/llvm/test/CodeGen/SystemZ/fp-cmp-03.ll
@@ -18,3 +18,18 @@
%res = select i1 %cond, i64 %a, i64 %b
ret i64 %res
}
+
+; Check comparison with zero.
+define i64 @f2(i64 %a, i64 %b, fp128 *%ptr) {
+; CHECK-LABEL: f2:
+; CHECK: ld %f0, 0(%r4)
+; CHECK: ld %f2, 8(%r4)
+; CHECK: ltxbr %f0, %f0
+; CHECK-NEXT: je
+; CHECK: lgr %r2, %r3
+; CHECK: br %r14
+ %f = load fp128 *%ptr
+ %cond = fcmp oeq fp128 %f, 0xL00000000000000000000000000000000
+ %res = select i1 %cond, i64 %a, i64 %b
+ ret i64 %res
+}