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Diffstat (limited to 'test/Transforms/IndVarSimplify/preserve-gep-remainder.ll')
| -rw-r--r-- | test/Transforms/IndVarSimplify/preserve-gep-remainder.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/preserve-gep-remainder.ll b/test/Transforms/IndVarSimplify/preserve-gep-remainder.ll new file mode 100644 index 0000000..e17368b --- /dev/null +++ b/test/Transforms/IndVarSimplify/preserve-gep-remainder.ll @@ -0,0 +1,20 @@ +; RUN: opt < %s -indvars -S \ +; RUN: | grep {\[%\]p.2.ip.1 = getelementptr \\\[3 x \\\[3 x double\\\]\\\]\\* \[%\]p, i64 2, i64 \[%\]tmp, i64 1} +target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128" + +; Indvars shouldn't expand this to +; %p.2.ip.1 = getelementptr [3 x [3 x double]]* %p, i64 0, i64 %tmp, i64 19 +; or something. That's valid, but more obscure. + +define void @foo([3 x [3 x double]]* noalias %p) nounwind { +entry: + br label %loop + +loop: + %i = phi i64 [ 0, %entry ], [ %i.next, %loop ] + %ip = add i64 %i, 1 + %p.2.ip.1 = getelementptr [3 x [3 x double]]* %p, i64 2, i64 %ip, i64 1 + volatile store double 0.0, double* %p.2.ip.1 + %i.next = add i64 %i, 1 + br label %loop +} |