derek.holloway
7502bf64a4
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40 lines
1.1 KiB
LLVM
40 lines
1.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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; <rdar://problem/10803154>
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; There should be no transformation.
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define i1 @f1(i32 %x) {
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; CHECK-LABEL: @f1(
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; CHECK-NEXT: [[A:%.*]] = trunc i32 [[X:%.*]] to i8
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; CHECK-NEXT: [[B:%.*]] = icmp ne i8 [[A]], 0
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; CHECK-NEXT: [[C:%.*]] = and i32 [[X]], 16711680
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; CHECK-NEXT: [[D:%.*]] = icmp ne i32 [[C]], 0
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; CHECK-NEXT: [[E:%.*]] = and i1 [[B]], [[D]]
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; CHECK-NEXT: ret i1 [[E]]
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;
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%a = trunc i32 %x to i8
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%b = icmp ne i8 %a, 0
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%c = and i32 %x, 16711680
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%d = icmp ne i32 %c, 0
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%e = and i1 %b, %d
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ret i1 %e
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}
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define i1 @f1_logical(i32 %x) {
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; CHECK-LABEL: @f1_logical(
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; CHECK-NEXT: [[A:%.*]] = trunc i32 [[X:%.*]] to i8
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; CHECK-NEXT: [[B:%.*]] = icmp ne i8 [[A]], 0
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; CHECK-NEXT: [[C:%.*]] = and i32 [[X]], 16711680
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; CHECK-NEXT: [[D:%.*]] = icmp ne i32 [[C]], 0
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; CHECK-NEXT: [[E:%.*]] = and i1 [[B]], [[D]]
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; CHECK-NEXT: ret i1 [[E]]
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;
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%a = trunc i32 %x to i8
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%b = icmp ne i8 %a, 0
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%c = and i32 %x, 16711680
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%d = icmp ne i32 %c, 0
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%e = select i1 %b, i1 %d, i1 false
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ret i1 %e
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}
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