diff options
| author | Tim Northover <tnorthover@apple.com> | 2013-10-29 08:22:33 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2013-10-29 08:22:33 +0000 |
| commit | fd4937fe2a0a2bbceeff8ba14e49411c0ae78855 (patch) | |
| tree | 7faf74127bd9c82d0c50c37b8da68d3f64efb622 | |
| parent | 6b713800ff03fdbb1d770d1e00af0e76041f3c03 (diff) | |
| download | external_llvm-fd4937fe2a0a2bbceeff8ba14e49411c0ae78855.zip external_llvm-fd4937fe2a0a2bbceeff8ba14e49411c0ae78855.tar.gz external_llvm-fd4937fe2a0a2bbceeff8ba14e49411c0ae78855.tar.bz2 | |
AArch64: add 'a' inline asm operand modifier
This is used in the Linux kernel, and effectively just means "print an
address".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193593 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/AArch64/AArch64AsmPrinter.cpp | 2 | ||||
| -rw-r--r-- | test/CodeGen/AArch64/inline-asm-modifiers.ll | 9 |
2 files changed, 11 insertions, 0 deletions
diff --git a/lib/Target/AArch64/AArch64AsmPrinter.cpp b/lib/Target/AArch64/AArch64AsmPrinter.cpp index 759809f..911218a 100644 --- a/lib/Target/AArch64/AArch64AsmPrinter.cpp +++ b/lib/Target/AArch64/AArch64AsmPrinter.cpp @@ -230,6 +230,8 @@ bool AArch64AsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum, // Output bits 23:12 of symbolic address with appropriate :hi12: relocation // modifier (currently only for TLS local exec). return printSymbolicAddress(MI->getOperand(OpNum), true, "hi12", O); + case 'a': + return PrintAsmMemoryOperand(MI, OpNum, AsmVariant, ExtraCode, O); } diff --git a/test/CodeGen/AArch64/inline-asm-modifiers.ll b/test/CodeGen/AArch64/inline-asm-modifiers.ll index d0b158f..124b719 100644 --- a/test/CodeGen/AArch64/inline-asm-modifiers.ll +++ b/test/CodeGen/AArch64/inline-asm-modifiers.ll @@ -107,3 +107,12 @@ define void @test_inline_modifier_c() nounwind { ret void } + +define void @test_inline_modifier_a() nounwind { +; CHECK-LABEL: test_inline_modifier_a: + call void asm sideeffect "prfm pldl1keep, ${0:a}", "r"(i32* @var_simple) +; CHECK: adrp [[VARHI:x[0-9]+]], var_simple +; CHECK: add x[[VARADDR:[0-9]+]], [[VARHI]], #:lo12:var_simple +; CHECK: prfm pldl1keep, [x[[VARADDR]]] + ret void +} |