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| author | Chris Lattner <sabre@nondot.org> | 2008-05-05 20:21:22 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-05-05 20:21:22 +0000 |
| commit | 8554cc2ea79861ddf43998bff634d1682e848216 (patch) | |
| tree | 4d5578884f6da0f9c6182ce10857dda021e78148 /test/Transforms | |
| parent | be5918c079c208af24fa3501f883ecceb6e6ae02 (diff) | |
| download | external_llvm-8554cc2ea79861ddf43998bff634d1682e848216.zip external_llvm-8554cc2ea79861ddf43998bff634d1682e848216.tar.gz external_llvm-8554cc2ea79861ddf43998bff634d1682e848216.tar.bz2 | |
Fix a crash when threading a block that includes a MRV call result.
DemoteRegToStack doesn't work with MRVs yet, because it relies on the
ability to load/store things.
This fixes PR2285.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50667 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/JumpThreading/2008-05-05-MRV-Crash.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/Transforms/JumpThreading/2008-05-05-MRV-Crash.ll b/test/Transforms/JumpThreading/2008-05-05-MRV-Crash.ll new file mode 100644 index 0000000..f109109 --- /dev/null +++ b/test/Transforms/JumpThreading/2008-05-05-MRV-Crash.ll @@ -0,0 +1,25 @@ +; RUN: llvm-as < %s | opt -jump-threading -disable-output +; PR2285 +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" +target triple = "x86_64-unknown-linux-gnu" + %struct.system__secondary_stack__mark_id = type { i64, i64 } + +define void @_ada_c35507b() { +entry: + br label %bb + +bb: ; preds = %bb13, %entry + %ch.0 = phi i8 [ 0, %entry ], [ 0, %bb13 ] ; <i8> [#uses=1] + %tmp11 = icmp ugt i8 %ch.0, 31 ; <i1> [#uses=1] + %tmp120 = call %struct.system__secondary_stack__mark_id @system__secondary_stack__ss_mark( ) ; <%struct.system__secondary_stack__mark_id> [#uses=1] + br i1 %tmp11, label %bb110, label %bb13 + +bb13: ; preds = %bb + br label %bb + +bb110: ; preds = %bb + %mrv_gr124 = getresult %struct.system__secondary_stack__mark_id %tmp120, 1 ; <i64> [#uses=0] + unreachable +} + +declare %struct.system__secondary_stack__mark_id @system__secondary_stack__ss_mark() |