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llvm-mirror/test/CodeGen/AArch64/zero-reg.ll
Stephen Lin 3ae734a60c Convert CodeGen/*/*.ll tests to use the new CHECK-LABEL for easier debugging. No functionality change and all tests pass after conversion.
This was done with the following sed invocation to catch label lines demarking function boundaries:
    sed -i '' "s/^;\( *\)\([A-Z0-9_]*\):\( *\)test\([A-Za-z0-9_-]*\):\( *\)$/;\1\2-LABEL:\3test\4:\5/g" test/CodeGen/*/*.ll
which was written conservatively to avoid false positives rather than false negatives. I scanned through all the changes and everything looks correct.

llvm-svn: 186258
2013-07-13 20:38:47 +00:00

32 lines
775 B
LLVM

; RUN: llc -verify-machineinstrs < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s
@var32 = global i32 0
@var64 = global i64 0
define void @test_zr() {
; CHECK-LABEL: test_zr:
store i32 0, i32* @var32
; CHECK: str wzr, [{{x[0-9]+}}, #:lo12:var32]
store i64 0, i64* @var64
; CHECK: str xzr, [{{x[0-9]+}}, #:lo12:var64]
ret void
; CHECK: ret
}
define void @test_sp(i32 %val) {
; CHECK-LABEL: test_sp:
; Important correctness point here is that LLVM doesn't try to use xzr
; as an addressing register: "str w0, [xzr]" is not a valid A64
; instruction (0b11111 in the Rn field would mean "sp").
%addr = getelementptr i32* null, i64 0
store i32 %val, i32* %addr
; CHECK: mov x[[NULL:[0-9]+]], xzr
; CHECK: str {{w[0-9]+}}, [x[[NULL]]]
ret void
; CHECK: ret
}