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llvm-mirror/test/CodeGen/X86/ins_subreg_coalesce-1.ll
Evan Cheng def576f9e6 - More aggressively coalescing away copies whose source is defined by an implicit_def.
- Added insert_subreg coalescing support.

llvm-svn: 49448
2008-04-09 20:57:25 +00:00

25 lines
792 B
LLVM

; RUN: llvm-as < %s | llc -march=x86 | grep mov | count 2
define fastcc i32 @sqlite3ExprResolveNames() nounwind {
entry:
br i1 false, label %UnifiedReturnBlock, label %bb4
bb4: ; preds = %entry
br i1 false, label %bb17, label %bb22
bb17: ; preds = %bb4
ret i32 1
bb22: ; preds = %bb4
br i1 true, label %walkExprTree.exit, label %bb4.i
bb4.i: ; preds = %bb22
ret i32 0
walkExprTree.exit: ; preds = %bb22
%tmp83 = load i16* null, align 4 ; <i16> [#uses=1]
%tmp84 = or i16 %tmp83, 2 ; <i16> [#uses=2]
store i16 %tmp84, i16* null, align 4
%tmp98993 = zext i16 %tmp84 to i32 ; <i32> [#uses=1]
%tmp1004 = lshr i32 %tmp98993, 3 ; <i32> [#uses=1]
%tmp100.lobit5 = and i32 %tmp1004, 1 ; <i32> [#uses=1]
ret i32 %tmp100.lobit5
UnifiedReturnBlock: ; preds = %entry
ret i32 0
}