| ; RUN: opt -S -consthoist < %s | FileCheck %s |
| target datalayout = "E-m:e-i64:64-n32:64" |
| target triple = "powerpc64-unknown-linux-gnu" |
| |
| ; Here the masks are all contiguous, and should not be hoisted. |
| define i32 @test1() nounwind { |
| entry: |
| ; CHECK-LABEL: @test1 |
| ; CHECK-NOT: bitcast i32 65535 to i32 |
| ; CHECK: and i32 undef, 65535 |
| %conv121 = and i32 undef, 65535 |
| br i1 undef, label %if.then152, label %if.end167 |
| |
| if.then152: |
| ; CHECK: and i32 undef, 65535 |
| %conv153 = and i32 undef, 65535 |
| br i1 undef, label %if.end167, label %end2 |
| |
| if.end167: |
| ; CHECK: and i32 {{.*}}, 32768 |
| %shl161 = shl nuw nsw i32 %conv121, 15 |
| %0 = load i8, i8* undef, align 1 |
| %conv169 = zext i8 %0 to i32 |
| %shl170 = shl nuw nsw i32 %conv169, 7 |
| %shl161.masked = and i32 %shl161, 32768 |
| %conv174 = or i32 %shl170, %shl161.masked |
| %cmp178 = icmp ugt i32 %conv174, 32767 |
| br i1 %cmp178, label %end1, label %end2 |
| |
| end1: |
| unreachable |
| |
| end2: |
| unreachable |
| } |
| |
| ; Here the masks are not contiguous, and should be hoisted. |
| define i32 @test2() nounwind { |
| entry: |
| ; CHECK-LABEL: @test2 |
| ; CHECK: bitcast i32 65531 to i32 |
| %conv121 = and i32 undef, 65531 |
| br i1 undef, label %if.then152, label %if.end167 |
| |
| if.then152: |
| %conv153 = and i32 undef, 65531 |
| br i1 undef, label %if.end167, label %end2 |
| |
| if.end167: |
| ; CHECK: add i32 {{.*}}, -32758 |
| %shl161 = shl nuw nsw i32 %conv121, 15 |
| %0 = load i8, i8* undef, align 1 |
| %conv169 = zext i8 %0 to i32 |
| %shl170 = shl nuw nsw i32 %conv169, 7 |
| %shl161.masked = and i32 %shl161, 32773 |
| %conv174 = or i32 %shl170, %shl161.masked |
| %cmp178 = icmp ugt i32 %conv174, 32767 |
| br i1 %cmp178, label %end1, label %end2 |
| |
| end1: |
| unreachable |
| |
| end2: |
| unreachable |
| } |
| |