6b3351792c
For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie
and COFF, but not for Mach-O. This nuance causes unneeded binary format differences.
This patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `
if there is an explicit linkage.
* Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar.
* Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
66 lines
2.2 KiB
Objective-C
66 lines
2.2 KiB
Objective-C
// RUN: %clang_cc1 -triple arm64-apple-ios11 -fobjc-arc -fblocks -fobjc-runtime=ios-11.0 -fobjc-exceptions -fexceptions -debug-info-kind=line-tables-only -emit-llvm -o - %s | FileCheck %s
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// CHECK: %[[STRUCT_STRONG:.*]] = type { i32, i8* }
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// CHECK: %[[STRUCT_WEAK:.*]] = type { i32, i8* }
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typedef struct {
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int i;
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id f1;
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} Strong;
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typedef struct {
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int i;
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__weak id f1;
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} Weak;
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// CHECK: define{{.*}} void @testStrongException()
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// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_STRONG]], align 8
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// CHECK: %[[AGG_TMP1:.*]] = alloca %[[STRUCT_STRONG]], align 8
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// CHECK: %[[CALL:.*]] = call [2 x i64] @genStrong()
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// CHECK: %[[V0:.*]] = bitcast %[[STRUCT_STRONG]]* %[[AGG_TMP]] to [2 x i64]*
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// CHECK: store [2 x i64] %[[CALL]], [2 x i64]* %[[V0]], align 8
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// CHECK: invoke [2 x i64] @genStrong()
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// CHECK: call void @calleeStrong([2 x i64] %{{.*}}, [2 x i64] %{{.*}})
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// CHECK-NEXT: ret void
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// CHECK: landingpad { i8*, i32 }
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// CHECK: %[[V9:.*]] = bitcast %[[STRUCT_STRONG]]* %[[AGG_TMP]] to i8**{{.*}}, !dbg [[ARTIFICIAL_LOC_1:![0-9]+]]
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// CHECK: call void @__destructor_8_s8(i8** %[[V9]]){{.*}}, !dbg [[ARTIFICIAL_LOC_1]]
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// CHECK: br label
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// CHECK: resume
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Strong genStrong(void);
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void calleeStrong(Strong, Strong);
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void testStrongException(void) {
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calleeStrong(genStrong(), genStrong());
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}
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// CHECK: define{{.*}} void @testWeakException()
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// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_WEAK]], align 8
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// CHECK: %[[AGG_TMP1:.*]] = alloca %[[STRUCT_WEAK]], align 8
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// CHECK: call void @genWeak(%[[STRUCT_WEAK]]* sret(%[[STRUCT_WEAK]]) align 8 %[[AGG_TMP]])
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// CHECK: invoke void @genWeak(%[[STRUCT_WEAK]]* sret(%[[STRUCT_WEAK]]) align 8 %[[AGG_TMP1]])
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// CHECK: call void @calleeWeak(%[[STRUCT_WEAK]]* %[[AGG_TMP]], %[[STRUCT_WEAK]]* %[[AGG_TMP1]])
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// CHECK: ret void
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// CHECK: landingpad { i8*, i32 }
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// CHECK: %[[V3:.*]] = bitcast %[[STRUCT_WEAK]]* %[[AGG_TMP]] to i8**{{.*}}, !dbg [[ARTIFICIAL_LOC_2:![0-9]+]]
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// CHECK: call void @__destructor_8_w8(i8** %[[V3]]){{.*}}, !dbg [[ARTIFICIAL_LOC_2]]
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// CHECK: br label
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// CHECK: resume
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Weak genWeak(void);
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void calleeWeak(Weak, Weak);
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void testWeakException(void) {
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calleeWeak(genWeak(), genWeak());
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}
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// CHECK-DAG: [[ARTIFICIAL_LOC_1]] = !DILocation(line: 0
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// CHECK-DAG: [[ARTIFICIAL_LOC_2]] = !DILocation(line: 0
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