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Diffstat (limited to 'test/Transforms/InstCombine/2008-04-29-VolatileLoadMerge.ll')
| -rw-r--r-- | test/Transforms/InstCombine/2008-04-29-VolatileLoadMerge.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2008-04-29-VolatileLoadMerge.ll b/test/Transforms/InstCombine/2008-04-29-VolatileLoadMerge.ll new file mode 100644 index 0000000..176162d --- /dev/null +++ b/test/Transforms/InstCombine/2008-04-29-VolatileLoadMerge.ll @@ -0,0 +1,21 @@ +; RUN: opt < %s -instcombine -S | grep {volatile load} | count 2 +; PR2262 +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" +target triple = "i386-apple-darwin8" +@g_1 = internal global i32 0 ; <i32*> [#uses=3] + +define i32 @main(i32 %i) nounwind { +entry: + %tmp93 = icmp slt i32 %i, 10 ; <i1> [#uses=0] + %tmp34 = volatile load i32* @g_1, align 4 ; <i32> [#uses=1] + br i1 %tmp93, label %bb11, label %bb + +bb: ; preds = %bb, %entry + %tmp3 = volatile load i32* @g_1, align 4 ; <i32> [#uses=1] + br label %bb11 + +bb11: ; preds = %bb + %tmp4 = phi i32 [ %tmp34, %entry ], [ %tmp3, %bb ] ; <i32> [#uses=1] + ret i32 %tmp4 +} + |