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- ; 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
- }
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