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diff test/Transforms/InstCombine/and-compare.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 60c9769439b8
children 1172e4bd9c6f
line wrap: on
line diff
--- a/test/Transforms/InstCombine/and-compare.ll	Wed Feb 18 14:56:07 2015 +0900
+++ b/test/Transforms/InstCombine/and-compare.ll	Tue Oct 13 17:48:58 2015 +0900
@@ -1,6 +1,9 @@
 ; RUN: opt < %s -instcombine -S | \
 ; RUN: FileCheck %s
 
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
 ; Should be optimized to one and.
 define i1 @test1(i32 %a, i32 %b) {
 ; CHECK-LABEL: @test1(
@@ -13,3 +16,23 @@
         %tmp = icmp ne i32 %tmp1, %tmp3         ; <i1> [#uses=1]
         ret i1 %tmp
 }
+
+define zeroext i1 @test2(i64 %A) {
+; CHECK-LABEL: @test2(
+; CHECK-NEXT: %[[trunc:.*]] = trunc i64 %A to i8
+; CHECK-NEXT: %[[icmp:.*]] = icmp sgt i8 %[[trunc]], -1
+; CHECK-NEXT: ret i1 %[[icmp]]
+  %and = and i64 %A, 128
+  %cmp = icmp eq i64 %and, 0
+  ret i1 %cmp
+}
+
+define zeroext i1 @test3(i64 %A) {
+; CHECK-LABEL: @test3(
+; CHECK-NEXT: %[[trunc:.*]] = trunc i64 %A to i8
+; CHECK-NEXT: %[[icmp:.*]] = icmp slt i8 %[[trunc]], 0
+; CHECK-NEXT: ret i1 %[[icmp]]
+  %and = and i64 %A, 128
+  %cmp = icmp ne i64 %and, 0
+  ret i1 %cmp
+}