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| author | Stephen Hines <srhines@google.com> | 2014-07-21 00:45:20 -0700 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2014-07-21 00:45:20 -0700 |
| commit | c6a4f5e819217e1e12c458aed8e7b122e23a3a58 (patch) | |
| tree | 81b7dd2bb4370a392f31d332a566c903b5744764 /test/Transforms/SimplifyCFG/X86/switch_to_lookup_table.ll | |
| parent | 19c6fbb3e8aaf74093afa08013134b61fa08f245 (diff) | |
| download | external_llvm-c6a4f5e819217e1e12c458aed8e7b122e23a3a58.zip external_llvm-c6a4f5e819217e1e12c458aed8e7b122e23a3a58.tar.gz external_llvm-c6a4f5e819217e1e12c458aed8e7b122e23a3a58.tar.bz2 | |
Update LLVM for rebase to r212749.
Includes a cherry-pick of:
r212948 - fixes a small issue with atomic calls
Change-Id: Ib97bd980b59f18142a69506400911a6009d9df18
Diffstat (limited to 'test/Transforms/SimplifyCFG/X86/switch_to_lookup_table.ll')
| -rw-r--r-- | test/Transforms/SimplifyCFG/X86/switch_to_lookup_table.ll | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/X86/switch_to_lookup_table.ll b/test/Transforms/SimplifyCFG/X86/switch_to_lookup_table.ll index 81079b1..51ced40 100644 --- a/test/Transforms/SimplifyCFG/X86/switch_to_lookup_table.ll +++ b/test/Transforms/SimplifyCFG/X86/switch_to_lookup_table.ll @@ -918,3 +918,58 @@ return: ; CHECK: switch i32 ; CHECK-NOT: @switch.table } + +; Don't build tables for switches with TLS variables. +@tls_a = thread_local global i32 0 +@tls_b = thread_local global i32 0 +@tls_c = thread_local global i32 0 +@tls_d = thread_local global i32 0 +define i32* @tls(i32 %x) { +entry: + switch i32 %x, label %sw.default [ + i32 0, label %return + i32 1, label %sw.bb1 + i32 2, label %sw.bb2 + ] +sw.bb1: + br label %return +sw.bb2: + br label %return +sw.default: + br label %return +return: + %retval.0 = phi i32* [ @tls_d, %sw.default ], [ @tls_c, %sw.bb2 ], [ @tls_b, %sw.bb1 ], [ @tls_a, %entry ] + ret i32* %retval.0 +; CHECK-LABEL: @tls( +; CHECK: switch i32 +; CHECK-NOT: @switch.table +} + +; Don't build tables for switches with dllimport variables. +@dllimport_a = external dllimport global [3x i32] +@dllimport_b = external dllimport global [3x i32] +@dllimport_c = external dllimport global [3x i32] +@dllimport_d = external dllimport global [3x i32] +define i32* @dllimport(i32 %x) { +entry: + switch i32 %x, label %sw.default [ + i32 0, label %return + i32 1, label %sw.bb1 + i32 2, label %sw.bb2 + ] +sw.bb1: + br label %return +sw.bb2: + br label %return +sw.default: + br label %return +return: + %retval.0 = phi i32* [ getelementptr inbounds ([3 x i32]* @dllimport_d, i32 0, i32 0), %sw.default ], + [ getelementptr inbounds ([3 x i32]* @dllimport_c, i32 0, i32 0), %sw.bb2 ], + [ getelementptr inbounds ([3 x i32]* @dllimport_b, i32 0, i32 0), %sw.bb1 ], + [ getelementptr inbounds ([3 x i32]* @dllimport_a, i32 0, i32 0), %entry ] + ret i32* %retval.0 +; CHECK-LABEL: @dllimport( +; CHECK: switch i32 +; CHECK-NOT: @switch.table +} |