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38 lines
648 B
LLVM
38 lines
648 B
LLVM
; RUN: opt < %s -analyze -scalar-evolution | grep {(trunc i} | not grep ext
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define i16 @test1(i8 %x) {
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%A = sext i8 %x to i32
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%B = trunc i32 %A to i16
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ret i16 %B
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}
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define i8 @test2(i16 %x) {
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%A = sext i16 %x to i32
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%B = trunc i32 %A to i8
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ret i8 %B
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}
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define i16 @test3(i16 %x) {
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%A = sext i16 %x to i32
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%B = trunc i32 %A to i16
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ret i16 %B
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}
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define i16 @test4(i8 %x) {
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%A = zext i8 %x to i32
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%B = trunc i32 %A to i16
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ret i16 %B
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}
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define i8 @test5(i16 %x) {
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%A = zext i16 %x to i32
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%B = trunc i32 %A to i8
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ret i8 %B
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}
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define i16 @test6(i16 %x) {
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%A = zext i16 %x to i32
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%B = trunc i32 %A to i16
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ret i16 %B
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}
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