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29f94c7201
This commit starts with a "git mv ARM64 AArch64" and continues out from there, renaming the C++ classes, intrinsics, and other target-local objects for consistency. "ARM64" test directories are also moved, and tests that began their life in ARM64 use an arm64 triple, those from AArch64 use an aarch64 triple. Both should be equivalent though. This finishes the AArch64 merge, and everyone should feel free to continue committing as normal now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209577 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
903 B
LLVM
36 lines
903 B
LLVM
; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs -o - %s | FileCheck %s
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; LLVM should be able to cope with multiple uses of the same flag-setting
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; instruction at different points of a routine. Either by rematerializing the
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; compare or by saving and restoring the flag register.
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declare void @bar()
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@var = global i32 0
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define i32 @test_multiflag(i32 %n, i32 %m, i32 %o) {
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; CHECK-LABEL: test_multiflag:
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%test = icmp ne i32 %n, %m
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; CHECK: cmp [[LHS:w[0-9]+]], [[RHS:w[0-9]+]]
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%val = zext i1 %test to i32
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; CHECK: cset {{[xw][0-9]+}}, ne
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store i32 %val, i32* @var
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call void @bar()
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; CHECK: bl bar
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; Currently, the comparison is emitted again. An MSR/MRS pair would also be
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; acceptable, but assuming the call preserves NZCV is not.
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br i1 %test, label %iftrue, label %iffalse
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; CHECK: cmp [[LHS]], [[RHS]]
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; CHECK: b.eq
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iftrue:
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ret i32 42
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iffalse:
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ret i32 0
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}
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