44 lines
856 B
LLVM
44 lines
856 B
LLVM
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; RUN: opt < %s -instcombine -S | FileCheck %s
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define i64 @test1(i64 %A, i32 %B) {
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%tmp12 = zext i32 %B to i64
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%tmp3 = shl i64 %tmp12, 32
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%tmp5 = add i64 %tmp3, %A
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%tmp6 = and i64 %tmp5, 123
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ret i64 %tmp6
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; CHECK: @test1
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; CHECK-NEXT: and i64 %A, 123
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; CHECK-NEXT: ret i64
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}
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define i32 @test2(i32 %A) {
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%B = and i32 %A, 7
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%C = and i32 %A, 32
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%F = add i32 %B, %C
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ret i32 %F
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; CHECK: @test2
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; CHECK-NEXT: and i32 %A, 39
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; CHECK-NEXT: ret i32
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}
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define i32 @test3(i32 %A) {
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%B = and i32 %A, 128
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%C = lshr i32 %A, 30
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%F = add i32 %B, %C
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ret i32 %F
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; CHECK: @test3
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; CHECK-NEXT: and
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; CHECK-NEXT: lshr
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; CHECK-NEXT: or i32 %B, %C
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; CHECK-NEXT: ret i32
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}
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define i32 @test4(i32 %A) {
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%B = add nuw i32 %A, %A
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ret i32 %B
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; CHECK: @test4
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; CHECK-NEXT: %B = shl nuw i32 %A, 1
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; CHECK-NEXT: ret i32 %B
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}
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