anirudhp updated this revision to Diff 372733.
anirudhp added a comment.
- Introduce separate label prefix for `MM_GOFF`
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D109362/new/
https://reviews.llvm.org/D109362
Files:
clang/lib/Basic/Targets/SystemZ.h
clang/test/CodeGen/target-data.c
llvm/docs/LangRef.rst
llvm/include/llvm/IR/DataLayout.h
llvm/lib/IR/DataLayout.cpp
llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
llvm/unittests/IR/ManglerTest.cpp
Index: llvm/unittests/IR/ManglerTest.cpp
===================================================================
--- llvm/unittests/IR/ManglerTest.cpp
+++ llvm/unittests/IR/ManglerTest.cpp
@@ -156,4 +156,22 @@
"L..foo");
}
+TEST(ManglerTest, GOFF) {
+ LLVMContext Ctx;
+ DataLayout DL("m:l"); // GOFF
+ Module Mod("test", Ctx);
+ Mod.setDataLayout(DL);
+ Mangler Mang;
+
+ EXPECT_EQ(mangleStr("foo", Mang, DL), "foo");
+ EXPECT_EQ(mangleStr("\01foo", Mang, DL), "foo");
+ EXPECT_EQ(mangleStr("?foo", Mang, DL), "?foo");
+ EXPECT_EQ(mangleFunc("foo", llvm::GlobalValue::ExternalLinkage,
+ llvm::CallingConv::C, Mod, Mang),
+ "foo");
+ EXPECT_EQ(mangleFunc("foo", llvm::GlobalValue::PrivateLinkage,
+ llvm::CallingConv::C, Mod, Mang),
+ "@foo");
+}
+
} // end anonymous namespace
Index: llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
===================================================================
--- llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
+++ llvm/lib/Target/SystemZ/SystemZTargetMachine.cpp
@@ -84,8 +84,9 @@
// 128-bit floats are aligned only to 64 bits.
Ret += "-f128:64";
- // When using the vector ABI, 128-bit vectors are also aligned to 64 bits.
- if (VectorABI)
+ // When using the vector ABI on Linux, 128-bit vectors are also aligned to 64
+ // bits. On z/OS, vector types are always aligned to 64 bits.
+ if (VectorABI || TT.isOSzOS())
Ret += "-v128:64";
// We prefer 16 bits of aligned for all globals; see above.
Index: llvm/lib/IR/DataLayout.cpp
===================================================================
--- llvm/lib/IR/DataLayout.cpp
+++ llvm/lib/IR/DataLayout.cpp
@@ -151,6 +151,8 @@
//===----------------------------------------------------------------------===//
const char *DataLayout::getManglingComponent(const Triple &T) {
+ if (T.isOSBinFormatGOFF())
+ return "-m:l";
if (T.isOSBinFormatMachO())
return "-m:o";
if (T.isOSWindows() && T.isOSBinFormatCOFF())
@@ -500,6 +502,9 @@
case 'e':
ManglingMode = MM_ELF;
break;
+ case 'l':
+ ManglingMode = MM_GOFF;
+ break;
case 'o':
ManglingMode = MM_MachO;
break;
Index: llvm/include/llvm/IR/DataLayout.h
===================================================================
--- llvm/include/llvm/IR/DataLayout.h
+++ llvm/include/llvm/IR/DataLayout.h
@@ -135,6 +135,7 @@
MM_MachO,
MM_WinCOFF,
MM_WinCOFFX86,
+ MM_GOFF,
MM_Mips,
MM_XCOFF
};
@@ -316,6 +317,7 @@
switch (ManglingMode) {
case MM_None:
case MM_ELF:
+ case MM_GOFF:
case MM_Mips:
case MM_WinCOFF:
case MM_XCOFF:
@@ -334,6 +336,8 @@
case MM_ELF:
case MM_WinCOFF:
return ".L";
+ case MM_GOFF:
+ return "@";
case MM_Mips:
return "$";
case MM_MachO:
Index: llvm/docs/LangRef.rst
===================================================================
--- llvm/docs/LangRef.rst
+++ llvm/docs/LangRef.rst
@@ -2593,6 +2593,7 @@
options are
* ``e``: ELF mangling: Private symbols get a ``.L`` prefix.
+ * ``l``: GOFF mangling: Private symbols get a ``.L`` prefix.
* ``m``: Mips mangling: Private symbols get a ``$`` prefix.
* ``o``: Mach-O mangling: Private symbols get ``L`` prefix. Other
symbols get a ``_`` prefix.
Index: clang/test/CodeGen/target-data.c
===================================================================
--- clang/test/CodeGen/target-data.c
+++ clang/test/CodeGen/target-data.c
@@ -253,6 +253,38 @@
// RUN: FileCheck %s -check-prefix=SYSTEMZ-VECTOR
// SYSTEMZ-VECTOR: target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
+// RUN: %clang_cc1 -triple s390x-none-zos -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu z10 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu arch8 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu z196 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu arch9 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu zEC12 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu arch10 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu z13 -target-feature +soft-float -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu z13 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu arch11 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu z14 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu arch12 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu z15 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu arch13 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// RUN: %clang_cc1 -triple s390x-none-zos -target-cpu arch14 -o - -emit-llvm %s | \
+// RUN: FileCheck %s -check-prefix=ZOS
+// ZOS: target datalayout = "E-m:l-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
+
// RUN: %clang_cc1 -triple msp430-unknown -o - -emit-llvm %s | \
// RUN: FileCheck %s -check-prefix=MSP430
// MSP430: target datalayout = "e-m:e-p:16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16"
Index: clang/lib/Basic/Targets/SystemZ.h
===================================================================
--- clang/lib/Basic/Targets/SystemZ.h
+++ clang/lib/Basic/Targets/SystemZ.h
@@ -46,7 +46,17 @@
LongDoubleFormat = &llvm::APFloat::IEEEquad();
DefaultAlignForAttributeAligned = 64;
MinGlobalAlign = 16;
- resetDataLayout("E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-a:8:16-n32:64");
+ if (Triple.isOSzOS()) {
+ // All vector types are default aligned on an 8-byte boundary, even if the
+ // vector facility is not available. That is different from Linux.
+ MaxVectorAlign = 64;
+ // Compared to Linux/ELF, the data layout differs only in some details:
+ // - name mangling is GOFF
+ // - 128 bit vector types are 64 bit aligned
+ resetDataLayout(
+ "E-m:l-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64");
+ } else
+ resetDataLayout("E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-a:8:16-n32:64");
MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64;
HasStrictFP = true;
}
@@ -129,7 +139,7 @@
HasVector &= !SoftFloat;
// If we use the vector ABI, vector types are 64-bit aligned.
- if (HasVector) {
+ if (HasVector && !getTriple().isOSzOS()) {
MaxVectorAlign = 64;
resetDataLayout("E-m:e-i1:8:16-i8:8:16-i64:64-f128:64"
"-v128:64-a:8:16-n32:64");
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