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llvm-project/llvm/test/LTO/X86/attrs.ll

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Add an -mattr option to the gold plugin to support subtarget features in LTO This adds support for an -mattr option to the gold plugin and to llvm-lto. This allows the caller to specify details of the subtarget architecture, like +aes, or +ssse3 on x86. Note that this requires a change to the include/llvm-c/lto.h interface: it adds a function lto_codegen_set_attr and it increments the version of the interface. llvm-svn: 207279
2014-04-26 05:46:51 +08:00
; RUN: llvm-as < %s >%t1
; RUN: llvm-lto -exported-symbol=test_x86_aesni_aeskeygenassist -mattr=+aes -o %t2 %t1
; RUN: llvm-objdump -d %t2 | FileCheck -check-prefix=WITH_AES %s
; RUN: not llvm-lto -exported-symbol=test_x86_aesni_aeskeygenassist -mattr=-aes -o %t3 %t1 2>&1 | FileCheck -check-prefix=WITHOUT_AES %s
target triple = "x86_64-unknown-linux-gnu"
declare <2 x i64> @llvm.x86.aesni.aeskeygenassist(<2 x i64>, i8)
define <2 x i64> @test_x86_aesni_aeskeygenassist(<2 x i64> %a0) {
; WITH_AES: test_x86_aesni_aeskeygenassist
; WITH_AES: aeskeygenassist
%res = call <2 x i64> @llvm.x86.aesni.aeskeygenassist(<2 x i64> %a0, i8 7)
ret <2 x i64> %res
}
; WITHOUT_AES: LLVM ERROR: Cannot select: intrinsic %llvm.x86.aesni.aeskeygenassist