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| author | Vincent Lejeune <vljn@ovi.com> | 2013-12-02 17:29:37 +0000 |
|---|---|---|
| committer | Vincent Lejeune <vljn@ovi.com> | 2013-12-02 17:29:37 +0000 |
| commit | 7043c7a35ecdbe1bb9ac9dc590233c3057cad674 (patch) | |
| tree | e43cdfec435b46232bf9513c63851c09da0459af /test | |
| parent | cce5873de356227917238cf7b5dc01168082463a (diff) | |
| download | llvm-7043c7a35ecdbe1bb9ac9dc590233c3057cad674.tar.gz llvm-7043c7a35ecdbe1bb9ac9dc590233c3057cad674.tar.bz2 llvm-7043c7a35ecdbe1bb9ac9dc590233c3057cad674.tar.xz | |
R600: Workaround for cayman loop bug
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196121 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/R600/cayman-loop-bug.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test/CodeGen/R600/cayman-loop-bug.ll b/test/CodeGen/R600/cayman-loop-bug.ll new file mode 100644 index 0000000000..a87352895e --- /dev/null +++ b/test/CodeGen/R600/cayman-loop-bug.ll @@ -0,0 +1,32 @@ +; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck %s + +; CHECK-LABEL: @main +; CHECK: LOOP_START_DX10 +; CHECK: ALU_PUSH_BEFORE +; CHECK: LOOP_START_DX10 +; CHECK: PUSH +; CHECK-NOT: ALU_PUSH_BEFORE +; CHECK: END_LOOP +; CHECK: END_LOOP +define void @main (<4 x float> inreg %reg0) #0 { +entry: + br label %outer_loop +outer_loop: + %cnt = phi i32 [0, %entry], [%cnt_incr, %inner_loop] + %cond = icmp eq i32 %cnt, 16 + br i1 %cond, label %outer_loop_body, label %exit +outer_loop_body: + %cnt_incr = add i32 %cnt, 1 + br label %inner_loop +inner_loop: + %cnt2 = phi i32 [0, %outer_loop_body], [%cnt2_incr, %inner_loop_body] + %cond2 = icmp eq i32 %cnt2, 16 + br i1 %cond, label %inner_loop_body, label %outer_loop +inner_loop_body: + %cnt2_incr = add i32 %cnt2, 1 + br label %inner_loop +exit: + ret void +} + +attributes #0 = { "ShaderType"="0" }
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