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build: make LLVM 21 the default #48

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73acbbc
build: make LLVM 21 the default
zhouguangyuan0718 Aug 15, 2026
02f977b
ci: test the default build with LLVM 21
zhouguangyuan0718 Aug 15, 2026
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6 changes: 3 additions & 3 deletions .github/workflows/go.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ jobs:
run:
go test -v -tags=llvm${{ matrix.llvm }}
- name: Test default LLVM
if: matrix.llvm == 19
if: matrix.llvm == 21
run:
go test -v
test-linux:
Expand All @@ -52,7 +52,7 @@ jobs:
run:
go test -v -tags=llvm${{ matrix.llvm }}
- name: Test default LLVM
if: matrix.llvm == 19
if: matrix.llvm == 21
run:
go test -v
test-linux-fedora:
Expand All @@ -75,6 +75,6 @@ jobs:
run:
go test -v -tags=llvm${{ matrix.llvm }}
- name: Test default LLVM
if: matrix.llvm == 19
if: matrix.llvm == 21
run:
go test -v
8 changes: 4 additions & 4 deletions README.markdown
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Expand Up @@ -11,12 +11,12 @@ This library provides bindings to a system-installed LLVM.

Currently supported:

* LLVM 20, 19, 18, 17, 16, 15 and 14 from [apt.llvm.org](http://apt.llvm.org/) on Debian/Ubuntu.
* LLVM 20, 19, 18, 17, 16, 15 and 14 from Homebrew on macOS.
* LLVM 22, 21, 20, 19, 18, 17, 16, 15 and 14 from [apt.llvm.org](http://apt.llvm.org/) on Debian/Ubuntu.
* LLVM 22, 21, 20, 19, 18, 17, 16, 15 and 14 from Homebrew on macOS.
* Any of the above versions with a manually built LLVM through the `byollvm` build tag. You need to set up `CFLAGS`/`LDFLAGS` etc yourself in this case.

You can select the LLVM version using a build tag, for example `-tags=llvm17`
to use LLVM 17.
LLVM 21 is selected by default. You can select another LLVM version using a
build tag, for example `-tags=llvm19` to use LLVM 19.

## Usage

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4 changes: 2 additions & 2 deletions llvm_config_llvm19.go
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
//go:build !byollvm && !llvm14 && !llvm15 && !llvm16 && !llvm17 && !llvm18 && !llvm20 && !llvm21 && !llvm22
// +build !byollvm,!llvm14,!llvm15,!llvm16,!llvm17,!llvm18,!llvm20,!llvm21,!llvm22
//go:build !byollvm && llvm19
// +build !byollvm,llvm19

package llvm

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3 changes: 2 additions & 1 deletion llvm_config_llvm21.go
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@@ -1,4 +1,5 @@
//go:build !byollvm && llvm21
//go:build !byollvm && !llvm14 && !llvm15 && !llvm16 && !llvm17 && !llvm18 && !llvm19 && !llvm20 && !llvm22
// +build !byollvm,!llvm14,!llvm15,!llvm16,!llvm17,!llvm18,!llvm19,!llvm20,!llvm22

package llvm

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