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Diffstat (limited to 'test/Transforms/SimplifyCFG/2009-01-19-UnconditionalTrappingConstantExpr.ll')
| -rw-r--r-- | test/Transforms/SimplifyCFG/2009-01-19-UnconditionalTrappingConstantExpr.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/2009-01-19-UnconditionalTrappingConstantExpr.ll b/test/Transforms/SimplifyCFG/2009-01-19-UnconditionalTrappingConstantExpr.ll new file mode 100644 index 0000000..33167bd --- /dev/null +++ b/test/Transforms/SimplifyCFG/2009-01-19-UnconditionalTrappingConstantExpr.ll @@ -0,0 +1,31 @@ +; RUN: opt < %s -simplifycfg -S | grep {br i1 } | count 4 +; PR3354 +; Do not merge bb1 into the entry block, it might trap. + +@G = extern_weak global i32 + +define i32 @test(i32 %tmp21, i32 %tmp24) { + %tmp25 = icmp sle i32 %tmp21, %tmp24 + br i1 %tmp25, label %bb2, label %bb1 + +bb1: ; preds = %bb + %tmp26 = icmp sgt i32 sdiv (i32 -32768, i32 ptrtoint (i32* @G to i32)), 0 + br i1 %tmp26, label %bb6, label %bb2 +bb2: + ret i32 42 + +bb6: + unwind +} + +define i32 @test2(i32 %tmp21, i32 %tmp24, i1 %tmp34) { + br i1 %tmp34, label %bb5, label %bb6 + +bb5: ; preds = %bb4 + br i1 icmp sgt (i32 sdiv (i32 32767, i32 ptrtoint (i32* @G to i32)), i32 0), label %bb6, label %bb7 +bb6: + ret i32 42 +bb7: + unwind +} + |