From 052d1b7b66a745f8ae5971899a32aefc4a409865 Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Fri, 15 Mar 2019 18:14:25 +0000
Subject: [PATCH] [InstCombine] add tests for logic of NaN fcmps; NFC

llvm-svn: 356287
---
 llvm/test/Transforms/InstCombine/and-fcmp.ll | 34 ++++++++++++++++++++++++++++
 llvm/test/Transforms/InstCombine/or-fcmp.ll  | 34 ++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)

diff --git a/llvm/test/Transforms/InstCombine/and-fcmp.ll b/llvm/test/Transforms/InstCombine/and-fcmp.ll
index d2c1f13..56954df 100644
--- a/llvm/test/Transforms/InstCombine/and-fcmp.ll
+++ b/llvm/test/Transforms/InstCombine/and-fcmp.ll
@@ -23,6 +23,40 @@ define <2 x i1> @PR1738_vec_undef(<2 x double> %x, <2 x double> %y) {
   ret <2 x i1> %or
 }
 
+define i1 @PR41069(float %a, float %b, float %c, float %d) {
+; CHECK-LABEL: @PR41069(
+; CHECK-NEXT:    [[ORD1:%.*]] = fcmp ord float [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[ORD2:%.*]] = fcmp ord float [[C:%.*]], 0.000000e+00
+; CHECK-NEXT:    [[AND:%.*]] = and i1 [[ORD1]], [[ORD2]]
+; CHECK-NEXT:    [[ORD3:%.*]] = fcmp ord float [[D:%.*]], 0.000000e+00
+; CHECK-NEXT:    [[R:%.*]] = and i1 [[AND]], [[ORD3]]
+; CHECK-NEXT:    ret i1 [[R]]
+;
+  %ord1 = fcmp ord float %a, %b
+  %ord2 = fcmp ord float %c, 0.0
+  %and = and i1 %ord1, %ord2
+  %ord3 = fcmp ord float %d, 0.0
+  %r = and i1 %and, %ord3
+  ret i1 %r
+}
+
+define <2 x i1> @PR41069_vec(<2 x double> %a, <2 x double> %b, <2 x double> %c, <2 x double> %d) {
+; CHECK-LABEL: @PR41069_vec(
+; CHECK-NEXT:    [[ORD1:%.*]] = fcmp ord <2 x double> [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[ORD2:%.*]] = fcmp ord <2 x double> [[C:%.*]], <double 0.000000e+00, double undef>
+; CHECK-NEXT:    [[AND:%.*]] = and <2 x i1> [[ORD1]], [[ORD2]]
+; CHECK-NEXT:    [[ORD3:%.*]] = fcmp ord <2 x double> [[D:%.*]], zeroinitializer
+; CHECK-NEXT:    [[R:%.*]] = and <2 x i1> [[AND]], [[ORD3]]
+; CHECK-NEXT:    ret <2 x i1> [[R]]
+;
+  %ord1 = fcmp ord <2 x double> %a, %b
+  %ord2 = fcmp ord <2 x double> %c, <double 0.0, double undef>
+  %and = and <2 x i1> %ord1, %ord2
+  %ord3 = fcmp ord <2 x double> %d, zeroinitializer
+  %r = and <2 x i1> %and, %ord3
+  ret <2 x i1> %r
+}
+
 define i1 @PR15737(float %a, double %b) {
 ; CHECK-LABEL: @PR15737(
 ; CHECK-NEXT:    [[CMP:%.*]] = fcmp ord float [[A:%.*]], 0.000000e+00
diff --git a/llvm/test/Transforms/InstCombine/or-fcmp.ll b/llvm/test/Transforms/InstCombine/or-fcmp.ll
index fd46718..3887216 100644
--- a/llvm/test/Transforms/InstCombine/or-fcmp.ll
+++ b/llvm/test/Transforms/InstCombine/or-fcmp.ll
@@ -23,6 +23,40 @@ define <2 x i1> @PR1738_vec_undef(<2 x double> %x, <2 x double> %y) {
   ret <2 x i1> %or
 }
 
+define i1 @PR41069(double %a, double %b, double %c, double %d) {
+; CHECK-LABEL: @PR41069(
+; CHECK-NEXT:    [[UNO1:%.*]] = fcmp uno double [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[UNO2:%.*]] = fcmp uno double [[C:%.*]], 0.000000e+00
+; CHECK-NEXT:    [[OR:%.*]] = or i1 [[UNO1]], [[UNO2]]
+; CHECK-NEXT:    [[UNO3:%.*]] = fcmp uno double [[D:%.*]], 0.000000e+00
+; CHECK-NEXT:    [[R:%.*]] = or i1 [[OR]], [[UNO3]]
+; CHECK-NEXT:    ret i1 [[R]]
+;
+  %uno1 = fcmp uno double %a, %b
+  %uno2 = fcmp uno double %c, 0.0
+  %or = or i1 %uno1, %uno2
+  %uno3 = fcmp uno double %d, 0.0
+  %r = or i1 %or, %uno3
+  ret i1 %r
+}
+
+define <2 x i1> @PR41069_vec(<2 x float> %a, <2 x float> %b, <2 x float> %c, <2 x float> %d) {
+; CHECK-LABEL: @PR41069_vec(
+; CHECK-NEXT:    [[UNO1:%.*]] = fcmp uno <2 x float> [[A:%.*]], [[B:%.*]]
+; CHECK-NEXT:    [[UNO2:%.*]] = fcmp uno <2 x float> [[C:%.*]], zeroinitializer
+; CHECK-NEXT:    [[OR:%.*]] = or <2 x i1> [[UNO1]], [[UNO2]]
+; CHECK-NEXT:    [[UNO3:%.*]] = fcmp uno <2 x float> [[D:%.*]], <float 0.000000e+00, float undef>
+; CHECK-NEXT:    [[R:%.*]] = or <2 x i1> [[OR]], [[UNO3]]
+; CHECK-NEXT:    ret <2 x i1> [[R]]
+;
+  %uno1 = fcmp uno <2 x float> %a, %b
+  %uno2 = fcmp uno <2 x float> %c, zeroinitializer
+  %or = or <2 x i1> %uno1, %uno2
+  %uno3 = fcmp uno <2 x float> %d, <float 0.0, float undef>
+  %r = or <2 x i1> %or, %uno3
+  ret <2 x i1> %r
+}
+
 define i1 @fcmp_uno_nonzero(float %x, float %y) {
 ; CHECK-LABEL: @fcmp_uno_nonzero(
 ; CHECK-NEXT:    [[TMP1:%.*]] = fcmp uno float [[X:%.*]], [[Y:%.*]]
-- 
2.7.4