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[AArch64] Do not emit '#' before immediates in inline asm

Authored by pirama on Aug 8 2019, 10:50 AM.

Description

[AArch64] Do not emit '#' before immediates in inline asm

Summary:
The A64 assembly language does not require the '#' character to
introduce constant immediate operands. Avoid the '#' since the AArch64
asm parser does not accept '#' before the lane specifier and rejects the
following:

__asm__ ("fmla v2.4s, v0.4s, v1.s[%0]" :: "I"(0x1))

Fix a test to not expect the '#' and add a new test case with the above
asm.

Fixes: https://github.com/android-ndk/ndk/issues/1036

Reviewers: peter.smith, kristof.beyls

Subscribers: javed.absar, hiraditya, llvm-commits, srhines

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D65550

llvm-svn: 368320