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Diffstat (limited to 'test/Transforms/SimplifyCFG/switch_formation.ll')
| -rw-r--r-- | test/Transforms/SimplifyCFG/switch_formation.ll | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/test/Transforms/SimplifyCFG/switch_formation.ll b/test/Transforms/SimplifyCFG/switch_formation.ll new file mode 100644 index 0000000000000..534c471eaad7c --- /dev/null +++ b/test/Transforms/SimplifyCFG/switch_formation.ll @@ -0,0 +1,31 @@ +; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | not grep br +; END. + +define i1 @_ZN4llvm11SetCondInst7classofEPKNS_11InstructionE({ i32, i32 }* %I) { +entry: + %tmp.1.i = getelementptr { i32, i32 }* %I, i64 0, i32 1 ; <i32*> [#uses=1] + %tmp.2.i = load i32* %tmp.1.i ; <i32> [#uses=6] + %tmp.2 = icmp eq i32 %tmp.2.i, 14 ; <i1> [#uses=1] + br i1 %tmp.2, label %shortcirc_done.4, label %shortcirc_next.0 +shortcirc_next.0: ; preds = %entry + %tmp.6 = icmp eq i32 %tmp.2.i, 15 ; <i1> [#uses=1] + br i1 %tmp.6, label %shortcirc_done.4, label %shortcirc_next.1 +shortcirc_next.1: ; preds = %shortcirc_next.0 + %tmp.11 = icmp eq i32 %tmp.2.i, 16 ; <i1> [#uses=1] + br i1 %tmp.11, label %shortcirc_done.4, label %shortcirc_next.2 +shortcirc_next.2: ; preds = %shortcirc_next.1 + %tmp.16 = icmp eq i32 %tmp.2.i, 17 ; <i1> [#uses=1] + br i1 %tmp.16, label %shortcirc_done.4, label %shortcirc_next.3 +shortcirc_next.3: ; preds = %shortcirc_next.2 + %tmp.21 = icmp eq i32 %tmp.2.i, 18 ; <i1> [#uses=1] + br i1 %tmp.21, label %shortcirc_done.4, label %shortcirc_next.4 +shortcirc_next.4: ; preds = %shortcirc_next.3 + %tmp.26 = icmp eq i32 %tmp.2.i, 19 ; <i1> [#uses=1] + br label %UnifiedReturnBlock +shortcirc_done.4: ; preds = %shortcirc_next.3, %shortcirc_next.2, %shortcirc_next.1, %shortcirc_next.0, %entry + br label %UnifiedReturnBlock +UnifiedReturnBlock: ; preds = %shortcirc_done.4, %shortcirc_next.4 + %UnifiedRetVal = phi i1 [ %tmp.26, %shortcirc_next.4 ], [ true, %shortcirc_done.4 ] ; <i1> [#uses=1] + ret i1 %UnifiedRetVal +} + |