YouCompleteMe/cpp/llvm/test/CodeGen/X86/fold-zext-trunc.ll

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2012-07-05 20:51:06 -04:00
; RUN: llc < %s | FileCheck %s
; PR9055
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
target triple = "i686-pc-linux-gnu"
%struct.S0 = type { i32, [2 x i8], [2 x i8], [4 x i8] }
@g_98 = common global %struct.S0 zeroinitializer, align 4
define void @foo() nounwind {
; CHECK: movzbl
; CHECK-NOT: movzbl
; CHECK: calll
entry:
%tmp17 = load i8* getelementptr inbounds (%struct.S0* @g_98, i32 0, i32 1, i32 0), align 4
%tmp54 = zext i8 %tmp17 to i32
%foo = load i32* bitcast (i8* getelementptr inbounds (%struct.S0* @g_98, i32 0, i32 1, i32 0) to i32*), align 4
%conv.i = trunc i32 %foo to i8
tail call void @func_12(i32 %tmp54, i8 zeroext %conv.i) nounwind
ret void
}
declare void @func_12(i32, i8 zeroext)