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Imported Upstream version 5.18.0.205

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Former-commit-id: 7f59f7e792705db773f1caecdaa823092f4e2927
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Xamarin Public Jenkins (auto-signing)
2018-11-16 08:20:38 +00:00
parent 5cd5df71cc
commit 8e12397d70
28486 changed files with 3867013 additions and 66 deletions
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54
external/llvm/test/CodeGen/AArch64/fast-isel-folding.ll vendored Normal file
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; RUN: llc -mtriple=aarch64-apple-darwin -O0 -fast-isel-abort=1 -verify-machineinstrs < %s
; Test that we don't fold the shift.
define i64 @fold_shift_test(i64 %a, i1 %c) {
%1 = sub i64 %a, 8
%2 = ashr i64 %1, 3
br i1 %c, label %bb1, label %bb2
bb1:
%3 = icmp ult i64 0, %2
br i1 %3, label %bb2, label %bb3
bb2:
ret i64 1
bb3:
ret i64 2
}
; Test that we don't fold the sign-extend.
define i64 @fold_sext_test1(i32 %a, i1 %c) {
%1 = sub i32 %a, 8
%2 = sext i32 %1 to i64
br i1 %c, label %bb1, label %bb2
bb1:
%3 = icmp ult i64 0, %2
br i1 %3, label %bb2, label %bb3
bb2:
ret i64 1
bb3:
ret i64 2
}
; Test that we don't fold the sign-extend.
define i64 @fold_sext_test2(i32 %a, i1 %c) {
%1 = sub i32 %a, 8
%2 = sext i32 %1 to i64
br i1 %c, label %bb1, label %bb2
bb1:
%3 = shl i64 %2, 4
ret i64 %3
bb2:
ret i64 %2
}
; Test that we clear the kill flag.
define i32 @fold_kill_test(i32 %a) {
%1 = sub i32 %a, 8
%2 = shl i32 %1, 3
%3 = icmp ult i32 0, %2
br i1 %3, label %bb1, label %bb2
bb1:
ret i32 %2
bb2:
%4 = add i32 %2, 4
ret i32 %4
}