26 lines
748 B
LLVM
26 lines
748 B
LLVM
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; RUN: opt < %s -codegenprepare -S -mtriple=x86_64-unknown-unknown | FileCheck %s
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.13.0"
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declare void @bar(i64)
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@b = global i16 0, align 2
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; This test case is extracted from PR38125.
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; %or is reachable by both a sext and zext that are going to be promoted.
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; It ensures correct operation on PromotedInsts.
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; CHECK: %promoted = trunc i32 %or to i16
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; CHECK-NEXT: %c = sext i16 %promoted to i64
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define i32 @foo(i16 %kkk) {
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entry:
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%t4 = load i16, i16* @b, align 2
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%conv4 = zext i16 %t4 to i32
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%or = or i16 %kkk, %t4
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%c = sext i16 %or to i64
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call void @bar(i64 %c)
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%t5 = and i16 %or, 5
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%z = zext i16 %t5 to i32
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ret i32 %z
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}
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