29 lines
723 B
LLVM
29 lines
723 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instsimplify -S | FileCheck %s
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@g = external global i16, align 1
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@g2 = external global i16, align 1
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define i64 @ptrdiff1() {
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; CHECK-LABEL: @ptrdiff1(
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; CHECK-NEXT: ret i64 sub (i64 ptrtoint (i16* @g to i64), i64 ptrtoint (i16* @g2 to i64))
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;
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%i = ptrtoint i16* @g to i64
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%i2 = ptrtoint i16* @g2 to i64
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%diff = sub i64 %i, %i2
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%r = freeze i64 %diff
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ret i64 %r
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}
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define i64 @ptrdiff2() {
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; CHECK-LABEL: @ptrdiff2(
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; CHECK-NEXT: ret i64 -2
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;
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%i = ptrtoint i16* @g to i64
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%gep = getelementptr i16, i16* @g, i64 1
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%i2 = ptrtoint i16* %gep to i64
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%diff = sub i64 %i, %i2
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%r = freeze i64 %diff
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ret i64 %r
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}
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