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llvm-mirror/test/CodeGen/PowerPC/delete-node.ll
2009-09-09 00:09:15 +00:00

23 lines
933 B
LLVM

; RUN: llc < %s -march=ppc32
; The DAGCombiner leaves behind a dead node in this testcase. Currently
; ISel is ignoring dead nodes, though it would be preferable for
; DAGCombiner to be able to eliminate the dead node.
define void @GrayATo32ARGBTabB(i8* %baseAddr, i16** %cmp, i32 %rowBytes) nounwind {
entry:
br label %bb1
bb1: ; preds = %bb1, %entry
%0 = load i16* null, align 2 ; <i16> [#uses=1]
%1 = ashr i16 %0, 4 ; <i16> [#uses=1]
%2 = sext i16 %1 to i32 ; <i32> [#uses=1]
%3 = getelementptr i8* null, i32 %2 ; <i8*> [#uses=1]
%4 = load i8* %3, align 1 ; <i8> [#uses=1]
%5 = zext i8 %4 to i32 ; <i32> [#uses=1]
%6 = shl i32 %5, 24 ; <i32> [#uses=1]
%7 = or i32 0, %6 ; <i32> [#uses=1]
store i32 %7, i32* null, align 4
br label %bb1
}