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| author | Martin Storsjo <martin@martin.st> | 2019-05-06 21:19:07 +0000 |
|---|---|---|
| committer | Martin Storsjo <martin@martin.st> | 2019-05-06 21:19:07 +0000 |
| commit | 7037a13679bfcec3c8071e1b7d9ab800f722222d (patch) | |
| tree | 387f2480086f936550796eee8b065cd84ae9257f | |
| parent | 5e100de2c7d34aa62c5e52b99ef8e9cc1d16c51a (diff) | |
| download | bcm5719-llvm-7037a13679bfcec3c8071e1b7d9ab800f722222d.tar.gz bcm5719-llvm-7037a13679bfcec3c8071e1b7d9ab800f722222d.zip | |
[AArch64] Add __builtin_sponentry, for calling setjmp in MinGW
In MinGW, setjmp isn't expanded as a builtin in the compiler (like it
is for MSVC), but manually hooked up as calls to the right underlying
functions in headers. Using the actual CRT's real setjmp/longjmp
functions requires this intrinsic. (Currently this is worked around by
using MinGW specific reimplementations of setjmp/longjmp on aarch64.)
Differential Revision: https://reviews.llvm.org/D61592
llvm-svn: 360082
| -rw-r--r-- | clang/include/clang/Basic/BuiltinsAArch64.def | 3 | ||||
| -rw-r--r-- | clang/lib/CodeGen/CGBuiltin.cpp | 5 | ||||
| -rw-r--r-- | clang/test/CodeGen/builtin-sponentry.c | 8 |
3 files changed, 16 insertions, 0 deletions
diff --git a/clang/include/clang/Basic/BuiltinsAArch64.def b/clang/include/clang/Basic/BuiltinsAArch64.def index 76f69480656..5ba03da4a7a 100644 --- a/clang/include/clang/Basic/BuiltinsAArch64.def +++ b/clang/include/clang/Basic/BuiltinsAArch64.def @@ -86,6 +86,9 @@ LANGBUILTIN(__wfi, "v", "", ALL_MS_LANGUAGES) LANGBUILTIN(__sev, "v", "", ALL_MS_LANGUAGES) LANGBUILTIN(__sevl, "v", "", ALL_MS_LANGUAGES) +// Misc +BUILTIN(__builtin_sponentry, "v*", "c") + TARGET_HEADER_BUILTIN(_BitScanForward, "UcUNi*UNi", "nh", "intrin.h", ALL_MS_LANGUAGES, "") TARGET_HEADER_BUILTIN(_BitScanReverse, "UcUNi*UNi", "nh", "intrin.h", ALL_MS_LANGUAGES, "") TARGET_HEADER_BUILTIN(_BitScanForward64, "UcUNi*ULLi", "nh", "intrin.h", ALL_MS_LANGUAGES, "") diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp index 14b8d0b18d3..048103275d5 100644 --- a/clang/lib/CodeGen/CGBuiltin.cpp +++ b/clang/lib/CodeGen/CGBuiltin.cpp @@ -7233,6 +7233,11 @@ Value *CodeGenFunction::EmitAArch64BuiltinExpr(unsigned BuiltinID, return Builder.CreateCall(F); } + if (BuiltinID == AArch64::BI__builtin_sponentry) { + llvm::Function *F = CGM.getIntrinsic(Intrinsic::sponentry); + return Builder.CreateCall(F); + } + // Find out if any arguments are required to be integer constant // expressions. unsigned ICEArguments = 0; diff --git a/clang/test/CodeGen/builtin-sponentry.c b/clang/test/CodeGen/builtin-sponentry.c new file mode 100644 index 00000000000..0a850891060 --- /dev/null +++ b/clang/test/CodeGen/builtin-sponentry.c @@ -0,0 +1,8 @@ +// RUN: %clang_cc1 -triple aarch64-windows-gnu -Oz -emit-llvm %s -o - | FileCheck %s + +void *test_sponentry() { + return __builtin_sponentry(); +} +// CHECK-LABEL: define dso_local i8* @test_sponentry() +// CHECK: = tail call i8* @llvm.sponentry() +// CHECK: ret i8* |
