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| author | Joey Gouly <joey.gouly@arm.com> | 2013-09-09 14:21:49 +0000 |
|---|---|---|
| committer | Joey Gouly <joey.gouly@arm.com> | 2013-09-09 14:21:49 +0000 |
| commit | b57d99694b87326a2eea26d76becf67bf5784b49 (patch) | |
| tree | 9cec38b5b6631727d01203aa4743d43d8024603b /test/CodeGen/Thumb2/v8_IT_2.ll | |
| parent | 7b80d9233a0a69c47d1e5ebe647951349ed166e8 (diff) | |
| download | llvm-b57d99694b87326a2eea26d76becf67bf5784b49.tar.gz llvm-b57d99694b87326a2eea26d76becf67bf5784b49.tar.bz2 llvm-b57d99694b87326a2eea26d76becf67bf5784b49.tar.xz | |
[ARMv8] Prevent generation of deprecated IT blocks on ARMv8 in Thumb mode.
IT blocks can only be one instruction lonf, and can only contain a subset of
the 16 instructions.
Patch by Artyom Skrobov!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190309 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb2/v8_IT_2.ll')
| -rw-r--r-- | test/CodeGen/Thumb2/v8_IT_2.ll | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb2/v8_IT_2.ll b/test/CodeGen/Thumb2/v8_IT_2.ll new file mode 100644 index 0000000000..fe88316d14 --- /dev/null +++ b/test/CodeGen/Thumb2/v8_IT_2.ll @@ -0,0 +1,37 @@ +; RUN: llc < %s -mtriple=thumbv8 | FileCheck %s + + %struct.quad_struct = type { i32, i32, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct*, %struct.quad_struct* } + +define fastcc i32 @CountTree(%struct.quad_struct* %tree) { +entry: +; CHECK-LABEL: CountTree: +; CHECK: bne +; CHECK: cmp +; CHECK: it eq +; CHECK: cmpeq +; CHECK: bne +; CHECK: mov +; CHECK: pop + br label %tailrecurse + +tailrecurse: ; preds = %bb, %entry + %tmp6 = load %struct.quad_struct** null ; <%struct.quad_struct*> [#uses=1] + %tmp9 = load %struct.quad_struct** null ; <%struct.quad_struct*> [#uses=2] + %tmp12 = load %struct.quad_struct** null ; <%struct.quad_struct*> [#uses=1] + %tmp14 = icmp eq %struct.quad_struct* null, null ; <i1> [#uses=1] + %tmp17 = icmp eq %struct.quad_struct* %tmp6, null ; <i1> [#uses=1] + %tmp23 = icmp eq %struct.quad_struct* %tmp9, null ; <i1> [#uses=1] + %tmp29 = icmp eq %struct.quad_struct* %tmp12, null ; <i1> [#uses=1] + %bothcond = and i1 %tmp17, %tmp14 ; <i1> [#uses=1] + %bothcond1 = and i1 %bothcond, %tmp23 ; <i1> [#uses=1] + %bothcond2 = and i1 %bothcond1, %tmp29 ; <i1> [#uses=1] + br i1 %bothcond2, label %return, label %bb + +bb: ; preds = %tailrecurse + %tmp41 = tail call fastcc i32 @CountTree( %struct.quad_struct* %tmp9 ) ; <i32> [#uses=0] + br label %tailrecurse + +return: ; preds = %tailrecurse + ret i32 0 +} + |