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authorEvan Cheng <evan.cheng@apple.com>2008-11-04 19:57:48 +0000
committerEvan Cheng <evan.cheng@apple.com>2008-11-04 19:57:48 +0000
commitc7c77297e28189c3c3bccd6e261a84970704b760 (patch)
treee175f24c2d7f9bf100ca69d50e8bdbb65f0b485e /test/CodeGen/ARM/fixunsdfdi.ll
parenta7ec706e9d63029deb80c7051b586428af137647 (diff)
Custom lower bit_convert i64 -> f64 into FMDRR. This is now happening with legalizetypes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58714 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM/fixunsdfdi.ll')
-rw-r--r--test/CodeGen/ARM/fixunsdfdi.ll29
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/fixunsdfdi.ll b/test/CodeGen/ARM/fixunsdfdi.ll
new file mode 100644
index 00000000000..d3038b9af76
--- /dev/null
+++ b/test/CodeGen/ARM/fixunsdfdi.ll
@@ -0,0 +1,29 @@
+; RUN: llvm-as < %s | llc -march=arm -mattr=+vfp2
+; RUN: llvm-as < %s | llc -march=arm -mattr=vfp2 | not grep fstd
+
+define hidden i64 @__fixunsdfdi(double %x) nounwind readnone {
+entry:
+ %x14 = bitcast double %x to i64 ; <i64> [#uses=1]
+ br i1 true, label %bb3, label %bb10
+
+bb3: ; preds = %entry
+ br i1 true, label %bb5, label %bb7
+
+bb5: ; preds = %bb3
+ %u.in.mask = and i64 %x14, -4294967296 ; <i64> [#uses=1]
+ %.ins = or i64 0, %u.in.mask ; <i64> [#uses=1]
+ %0 = bitcast i64 %.ins to double ; <double> [#uses=1]
+ %1 = sub double %x, %0 ; <double> [#uses=1]
+ %2 = fptosi double %1 to i32 ; <i32> [#uses=1]
+ %3 = add i32 %2, 0 ; <i32> [#uses=1]
+ %4 = zext i32 %3 to i64 ; <i64> [#uses=1]
+ %5 = shl i64 %4, 32 ; <i64> [#uses=1]
+ %6 = or i64 %5, 0 ; <i64> [#uses=1]
+ ret i64 %6
+
+bb7: ; preds = %bb3
+ ret i64 0
+
+bb10: ; preds = %entry
+ ret i64 0
+}