| commit 5d90f886bc022e7c9144a0ef08ea7ccde7e66030 |
| Author: Nick Desaulniers <ndesaulniers@google.com> |
| Date: Tue Mar 17 10:51:21 2020 -0700 |
| |
| [clang][AArch64] readd support for 'p' inline asm constraint |
| |
| Summary: |
| Was accidentally removed by commit af64948e2a05 when it overrode |
| TargetInfo::convertConstraint. |
| |
| Fixes: pr/45225 |
| |
| Reviewers: eli.friedman, sdesmalen |
| |
| Reviewed By: sdesmalen |
| |
| Subscribers: echristo, sdesmalen, kristof.beyls, cfe-commits, kmclaughlin, srhines |
| |
| Tags: #clang |
| |
| Differential Revision: https://reviews.llvm.org/D76297 |
| |
| diff --git a/clang/lib/Basic/Targets/AArch64.h b/clang/lib/Basic/Targets/AArch64.h |
| index befbf693ad8..41970e5d716 100644 |
| --- a/clang/lib/Basic/Targets/AArch64.h |
| +++ b/clang/lib/Basic/Targets/AArch64.h |
| @@ -96,7 +96,7 @@ public: |
| Constraint += 2; |
| break; |
| default: |
| - R = std::string(1, *Constraint); |
| + R = TargetInfo::convertConstraint(Constraint); |
| break; |
| } |
| return R; |
| diff --git a/clang/test/CodeGen/inline-asm-p-constraint.c b/clang/test/CodeGen/inline-asm-p-constraint.c |
| new file mode 100644 |
| index 00000000000..70db78bc649 |
| --- /dev/null |
| +++ b/clang/test/CodeGen/inline-asm-p-constraint.c |
| @@ -0,0 +1,6 @@ |
| +// RUN: %clang_cc1 -emit-llvm %s -o - -triple aarch64-linux-gnu | FileCheck %s |
| +void foo(void* ptr) { |
| + asm volatile("prfm pldl1keep, %a0\n" : : "p" (ptr)); |
| + // CHECK: call void asm sideeffect "prfm pldl1keep, ${0:a}\0A", "r"(i8* %0) |
| + // CHECK-NOT: call void asm sideeffect "prfm pldl1keep, ${0:a}\0A", "p"(i8* %0) |
| +} |
