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| author | Stephen Hines <srhines@google.com> | 2014-12-01 14:51:49 -0800 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2014-12-02 16:08:10 -0800 |
| commit | 37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch) | |
| tree | 8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /test/Transforms/SimplifyCFG/switch-to-select-multiple-edge-per-block-phi.ll | |
| parent | d2327b22152ced7bc46dc629fc908959e8a52d03 (diff) | |
| download | external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.gz external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.bz2 external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.zip | |
Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'test/Transforms/SimplifyCFG/switch-to-select-multiple-edge-per-block-phi.ll')
| -rw-r--r-- | test/Transforms/SimplifyCFG/switch-to-select-multiple-edge-per-block-phi.ll | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/switch-to-select-multiple-edge-per-block-phi.ll b/test/Transforms/SimplifyCFG/switch-to-select-multiple-edge-per-block-phi.ll new file mode 100644 index 0000000000..ddf5d1f06c --- /dev/null +++ b/test/Transforms/SimplifyCFG/switch-to-select-multiple-edge-per-block-phi.ll @@ -0,0 +1,40 @@ +; RUN: opt < %s -simplifycfg -S | FileCheck %s + +; a, b; +; fn1() { +; if (b) +; if (a == 0 || a == 5) +; return a; +; return 0; +; } + +; Checking that we handle correctly the case when we have a switch +; branching multiple times to the same block + +@b = common global i32 0, align 4 +@a = common global i32 0, align 4 + +; Function Attrs: nounwind +define i32 @fn1() { +; CHECK-LABEL: @fn1 +; CHECK: %switch.selectcmp1 = icmp eq i32 %1, 5 +; CHECK: %switch.select2 = select i1 %switch.selectcmp1, i32 5, i32 %switch.select +entry: + %0 = load i32* @b, align 4 + %tobool = icmp eq i32 %0, 0 + br i1 %tobool, label %if.end3, label %if.then + +if.then: + %1 = load i32* @a, align 4 + switch i32 %1, label %if.end3 [ + i32 5, label %return + i32 0, label %return + ] + +if.end3: + br label %return + +return: + %retval.0 = phi i32 [ 0, %if.end3 ], [ %1, %if.then ], [ %1, %if.then ] + ret i32 %retval.0 +} |