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| author | Jim Grosbach <grosbach@apple.com> | 2010-04-22 23:24:18 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2010-04-22 23:24:18 +0000 |
| commit | 3a1287b470bde29d10e7c6998fb69b74d2265b6c (patch) | |
| tree | d00a44ac8e3298c397a18e44107ddec9c03e82ed /test/CodeGen/ARM | |
| parent | fff6c5332f748d477e6ad0bd9b60b49ae867ab42 (diff) | |
| download | external_llvm-3a1287b470bde29d10e7c6998fb69b74d2265b6c.zip external_llvm-3a1287b470bde29d10e7c6998fb69b74d2265b6c.tar.gz external_llvm-3a1287b470bde29d10e7c6998fb69b74d2265b6c.tar.bz2 | |
Update ARM DAGtoDAG for matching UBFX instruction for unsigned bitfield
extraction. This fixes PR5998.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102144 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM')
| -rw-r--r-- | test/CodeGen/ARM/bfx.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/bfx.ll b/test/CodeGen/ARM/bfx.ll new file mode 100644 index 0000000..fcca191 --- /dev/null +++ b/test/CodeGen/ARM/bfx.ll @@ -0,0 +1,28 @@ +; RUN: llc < %s -march=arm -mattr=+v7a | FileCheck %s + +define i32 @sbfx1(i32 %a) { +; CHECK: sbfx1 +; CHECK: sbfx r0, r0, #7, #11 + %t1 = lshr i32 %a, 7 + %t2 = trunc i32 %t1 to i11 + %t3 = sext i11 %t2 to i32 + ret i32 %t3 +} + +define i32 @ubfx1(i32 %a) { +; CHECK: ubfx1 +; CHECK: ubfx r0, r0, #7, #11 + %t1 = lshr i32 %a, 7 + %t2 = trunc i32 %t1 to i11 + %t3 = zext i11 %t2 to i32 + ret i32 %t3 +} + +define i32 @ubfx2(i32 %a) { +; CHECK: ubfx2 +; CHECK: ubfx r0, r0, #7, #11 + %t1 = lshr i32 %a, 7 + %t2 = and i32 %t1, 2047 + ret i32 %t2 +} + |