From a86343512845c9c1fdbac865fea88aa5fce7142a Mon Sep 17 00:00:00 2001 From: Eric Christopher Date: Wed, 17 Apr 2019 02:12:23 +0000 Subject: Temporarily Revert "Add basic loop fusion pass." As it's causing some bot failures (and per request from kbarton). This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda. llvm-svn: 358546 --- .../Transforms/InstCombine/prevent-cmp-merge.ll | 41 ---------------------- 1 file changed, 41 deletions(-) delete mode 100644 llvm/test/Transforms/InstCombine/prevent-cmp-merge.ll (limited to 'llvm/test/Transforms/InstCombine/prevent-cmp-merge.ll') diff --git a/llvm/test/Transforms/InstCombine/prevent-cmp-merge.ll b/llvm/test/Transforms/InstCombine/prevent-cmp-merge.ll deleted file mode 100644 index ab37c7d5623..00000000000 --- a/llvm/test/Transforms/InstCombine/prevent-cmp-merge.ll +++ /dev/null @@ -1,41 +0,0 @@ -; RUN: opt < %s -instcombine -S | FileCheck %s -; -; This test makes sure that InstCombine does not replace the sequence of -; xor/sub instruction followed by cmp instruction into a single cmp instruction -; if there is more than one use of xor/sub. - -define zeroext i1 @test1(i32 %lhs, i32 %rhs) { -; CHECK-LABEL: @test1( -; CHECK-NEXT: %xor = xor i32 %lhs, 5 -; CHECK-NEXT: %cmp1 = icmp eq i32 %xor, 10 - - %xor = xor i32 %lhs, 5 - %cmp1 = icmp eq i32 %xor, 10 - %cmp2 = icmp eq i32 %xor, %rhs - %sel = or i1 %cmp1, %cmp2 - ret i1 %sel -} - -define zeroext i1 @test2(i32 %lhs, i32 %rhs) { -; CHECK-LABEL: @test2( -; CHECK-NEXT: %xor = xor i32 %lhs, %rhs -; CHECK-NEXT: %cmp1 = icmp eq i32 %xor, 0 - - %xor = xor i32 %lhs, %rhs - %cmp1 = icmp eq i32 %xor, 0 - %cmp2 = icmp eq i32 %xor, 32 - %sel = xor i1 %cmp1, %cmp2 - ret i1 %sel -} - -define zeroext i1 @test3(i32 %lhs, i32 %rhs) { -; CHECK-LABEL: @test3( -; CHECK-NEXT: %sub = sub nsw i32 %lhs, %rhs -; CHECK-NEXT: %cmp1 = icmp eq i32 %sub, 0 - - %sub = sub nsw i32 %lhs, %rhs - %cmp1 = icmp eq i32 %sub, 0 - %cmp2 = icmp eq i32 %sub, 31 - %sel = or i1 %cmp1, %cmp2 - ret i1 %sel -} -- cgit v1.2.3