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llvm-project/llvm/test/Linker/module-max-warn.ll

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IR Linking: Support merging Warning+Max module metadata flags Summary: Debug Info Version was changed to use "Max" instead of "Warning" per the original design intent - but this maxes old/new IR unlinkable, since mismatched merge styles are a linking failure. It seems possible/maybe reasonable to actually support the combination of these two flags: Warn, but then use the maximum value rather than the first value/earlier module's value. Reviewers: tejohnson Differential Revision: https://reviews.llvm.org/D74257
2020-02-07 06:37:23 +08:00
; RUN: llvm-link %s %p/Inputs/module-max-warn.ll -S -o - 2>&1 | FileCheck %s
Linker/module-max-warn.ll: Fix test to be compatible with Windows file separators
2020-02-08 09:13:32 +08:00
; CHECK: warning: linking module flags 'Combine Max and Warn': IDs have conflicting values ('i32 4' from {{.*}}/Inputs/module-max-warn.ll with 'i32 2' from llvm-link)
; CHECK: warning: linking module flags 'Combine Warn and Max': IDs have conflicting values ('i32 5' from {{.*}}/Inputs/module-max-warn.ll with 'i32 3' from llvm-link)
IR Linking: Support merging Warning+Max module metadata flags Summary: Debug Info Version was changed to use "Max" instead of "Warning" per the original design intent - but this maxes old/new IR unlinkable, since mismatched merge styles are a linking failure. It seems possible/maybe reasonable to actually support the combination of these two flags: Warn, but then use the maximum value rather than the first value/earlier module's value. Reviewers: tejohnson Differential Revision: https://reviews.llvm.org/D74257
2020-02-07 06:37:23 +08:00
; CHECK: !0 = !{i32 7, !"Combine Max and Warn", i32 4}
; CHECK: !1 = !{i32 7, !"Combine Warn and Max", i32 5}
!llvm.module.flags = !{!0, !1}
!0 = !{i32 7, !"Combine Max and Warn", i32 2}
!1 = !{i32 2, !"Combine Warn and Max", i32 3}