diff options
| author | Christopher Lamb <christopher.lamb@gmail.com> | 2007-08-10 21:18:25 +0000 |
|---|---|---|
| committer | Christopher Lamb <christopher.lamb@gmail.com> | 2007-08-10 21:18:25 +0000 |
| commit | 380c6275adb0247023d68c6c8b280550a1066f4c (patch) | |
| tree | 4a8f7d0a66e9900a73305c091f32b6102178bacc /test | |
| parent | eaf093213b6b4753d9c57c11cb459cbc92ac138c (diff) | |
| download | external_llvm-380c6275adb0247023d68c6c8b280550a1066f4c.zip external_llvm-380c6275adb0247023d68c6c8b280550a1066f4c.tar.gz external_llvm-380c6275adb0247023d68c6c8b280550a1066f4c.tar.bz2 | |
Add 2-addr to 3-addr promotion code that allows 32-bit LEA to be used via subregisters when 16-bit LEA is disabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41007 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/2007-08-10-LEA16Use32.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2007-08-10-LEA16Use32.ll b/test/CodeGen/X86/2007-08-10-LEA16Use32.ll new file mode 100644 index 0000000..5bb696f --- /dev/null +++ b/test/CodeGen/X86/2007-08-10-LEA16Use32.ll @@ -0,0 +1,23 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep {leal} + +@X = global i16 0 ; <i16*> [#uses=1] +@Y = global i16 0 ; <i16*> [#uses=1] + +define void @_Z3fooi(i32 %N) { +entry: + %tmp1019 = icmp sgt i32 %N, 0 ; <i1> [#uses=1] + br i1 %tmp1019, label %bb, label %return + +bb: ; preds = %bb, %entry + %i.014.0 = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2] + %tmp1 = trunc i32 %i.014.0 to i16 ; <i16> [#uses=2] + volatile store i16 %tmp1, i16* @X, align 2 + %tmp34 = shl i16 %tmp1, 2 ; <i16> [#uses=1] + volatile store i16 %tmp34, i16* @Y, align 2 + %indvar.next = add i32 %i.014.0, 1 ; <i32> [#uses=2] + %exitcond = icmp eq i32 %indvar.next, %N ; <i1> [#uses=1] + br i1 %exitcond, label %return, label %bb + +return: ; preds = %bb, %entry + ret void +}
\ No newline at end of file |