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llvm-mirror/test/Linker/module-flags-3-a.ll

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[WIP] Initial code for module flags. Module flags are key-value pairs associated with the module. They include a 'behavior' value, indicating how module flags react when mergine two files. Normally, it's just the union of the two module flags. But if two module flags have the same key, then the resulting flags are dictated by the behaviors. Allowable behaviors are: Error Emits an error if two values disagree. Warning Emits a warning if two values disagree. Require Emits an error when the specified value is not present or doesn't have the specified value. It is an error for two (or more) llvm.module.flags with the same ID to have the Require behavior but different values. There may be multiple Require flags per ID. Override Uses the specified value if the two values disagree. It is an error for two (or more) llvm.module.flags with the same ID to have the Override behavior but different values. llvm-svn: 150300
2012-02-11 12:38:06 +01:00
; RUN: llvm-link %s %p/module-flags-3-b.ll -S -o - | sort | FileCheck %s
; Test 'require' behavior.
; CHECK: !0 = metadata !{i32 1, metadata !"foo", i32 37}
[Linker] Change module flag linking to be more extensible. - Instead of computing a bunch of buckets of different flag types, just do an incremental link resolving conflicts as they arise. - This also has the advantage of making the link result deterministic and not dependent on map iteration order. llvm-svn: 172634
2013-01-16 19:39:23 +01:00
; CHECK: !1 = metadata !{i32 1, metadata !"bar", i32 42}
; CHECK: !2 = metadata !{i32 3, metadata !"foo", metadata !3}
; CHECK: !3 = metadata !{metadata !"bar", i32 42}
; CHECK: !llvm.module.flags = !{!0, !1, !2}
[WIP] Initial code for module flags. Module flags are key-value pairs associated with the module. They include a 'behavior' value, indicating how module flags react when mergine two files. Normally, it's just the union of the two module flags. But if two module flags have the same key, then the resulting flags are dictated by the behaviors. Allowable behaviors are: Error Emits an error if two values disagree. Warning Emits a warning if two values disagree. Require Emits an error when the specified value is not present or doesn't have the specified value. It is an error for two (or more) llvm.module.flags with the same ID to have the Require behavior but different values. There may be multiple Require flags per ID. Override Uses the specified value if the two values disagree. It is an error for two (or more) llvm.module.flags with the same ID to have the Override behavior but different values. llvm-svn: 150300
2012-02-11 12:38:06 +01:00
!0 = metadata !{ i32 1, metadata !"foo", i32 37 }
!1 = metadata !{ i32 1, metadata !"bar", i32 42 }
!llvm.module.flags = !{ !0, !1 }
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